J/C - Just checking
J/J - Just joking
J/K - Joking
J/K - Just kidding!
J/P - Just playing
J/W - Just wondering
J2LYK - Just to let you know
J4F - Just for fun
J4G - Just for grins
J5M - Just five minutes
JA - Jump if above
JAC - Just a sec
JAD - Just another day
JADB - Just another drive by
JAE - Jump if above or equal
JAFO - Just another friggin' observer
JAFO - Just another friggin' onlooker
JAFU - Just another foul up
JAM - Just a minute
JAM - Just a moment
JAMIE - Jugs are massive in England
JAO - Just another observer
JAS - Just a sec(ond)
JASM - Just a simple-minded
JAT - Just a thought
JB - Juke box
JC - Just chilling
JC - Just curious
JDI - Just do it
JFF - Just for fun
JFI - Just for information
JFK - Just for kicks
JFTR - Just for the record
JFYI - Just for your information
JIC - Just in case
JIT - Just in time
JJ - Just joking
JJA - Just joking around
JJWY - Just joking with you
JK - Joke
JK, J/K - Just kidding
JL - Jump if less
JLE - Jump if less than or equal to
JLH - Jennifer love hewitt
JM2C - Just my 2 cents
JM2CW - Just my 2 cents worth
JMHFOOC - Just my humble friggin' opinion of course
JMHO - Just my humble opinion
JMO - Just my opinion
JMOOC - Just my opinion of course
JMP - Jump
JMTCW - Just my two cents worth
JOOC - Just out of curiosity
JOOTT - Just one of those things
JOTL - Joy of the Lord
JP - Just playing
JPF - Just plain fun
JPW - Just plain weird
JPYL - Just pulling your leg
JS - Jump if sign
JSNM - Just stark naked magic
JSTCLLME - Just call me
JSU - Just shut up
JT - Just teasing
JTLUK - Just to let you know
JTUMLTK - Just thought you might like to know
JTYWTK - Just thought you wanted to know
JUADLAM - Jumping up and down like a monkey
JUZ - Just
JVNP - Just venting, nothing personal
JW - Just wondering
JYYC - Just yanking your chain
K
K - Kiss
K - Ok, okay
K8 - Kate
KB - Keyboard
KB - Kiss back
KC - Keep cool
KCBIWIYWI - Keep coming back, it works if you work it
KEAH - Kill everyone after hours
KEWL - Cool
KFY - Kiss for you
KHUF - Know how you feel
KIA - Killed in action
KIA - Know it all
KIBO - Knowledge in, bulldust out
KIR - Keep it real
KIR - Keepin' it real
KIS(S) - Keep it simple (stupid)
KISS - Keep it short & simple! (polite var)
KISS - Keep it simple sister!
KISS - Keep it simple, stupid!
KISS - Keep it simple, sweetie!
KISS - Keeping it sweetly simple!
KIT - Keep in touch
KITB - Kick in the butt (type of therapy)
KK - Kiss kiss
KK - Okay, okay
KMB - Kiss my butt
KMIB - Kiss my Italian butt
KMP - Keep me posted
KMQ - Kiss me quick
KMRIB - Kiss my royal Irish butt
KMSMB - Kiss my shiny metal butt
KMWIH - Kick me where it hurts
KMYF - Kiss me you fool
KOC - Kiss on cheek
KOK - Knock
KOL - Kiss on lips
KOL - Kiss on the lips
KOS - Kids over shoulder
KOT - Keep on truckin'
KOTC - Kiss on the cheek
KOTFH - Kiss on the forehead
KOTH - Kiss on the hand
KOTL - Kiss on the lips
KOTLO - Keep on the look out
KOTM - Kook of the month
KOTW - Keep on the watch
KPC - Keeping parents clueless
KTCOOTN - Keep this crap out of this newsgroup
KTF - Keep the faith
KTLF - Keep the Lord first
KUTGW - Keep up the good work
KWIM? - Know what I mean?
KYEP - Keep your eyes peeled
KYFC - Keep your fingers crossed
KYHOOTW - Keep your head out of the water
KYHOOYB - Keep your head out of your butt
KYHTY - Keep your hands to yourself
KYHU - Keep your head up
KYPO - Keep your pants on!
KYSO - Keep your shirt on
L
L - Laugh
L - Laughing
L&N - Landing
L2P - Learn to play
L2R - Learn to read
L8 - Late
L84skool - Late for school
L8a - Late
L8ER - Later
L8R g8R - Later gator
L8R - Later
L8TER - Later
L8TR - Later
LAB - Life's a beach
LAB - Life's a bitch
LAB&TYD - Life's a beach & then you die
LABATYD - Life's a bitch and then you die
LAFF - Laugh
LAK - Love and kisses
LALL - Live & let live
LALOL - Lots and lots of laughs
LALOTA - Lots and lots of thunderous applause
LAM - Leave a message
LAMB - Look at my butt
LAMDILLIGAF - Look at me, do I look like I give a flip?
LART - Loser attitude readjustment tool
LAT - Laugh at that
LATES - Later
LATN - Laugh at the newbs
LATWTTB - Laughing all the way to the bank
LAU - Laugh at you
LB - Pound, pounds
LBAY - Laughing back at you
LBB - Little black box
LBIG - Laughing because I'm gay
LBQ - Lame butt quote
LBR - Librarian
LBR - Little boy's room
LBS - Pound, pounds
LBT - Listen before talk
LBUG - Laughing because you are gay
LBX - Local bus accelerator
LC! - Lower case! (turn off your caps lock)
LCH - Lunch
LD - Later, dude
LD - Long distance
LDR - Long distance relationship
LDTO - Let's ditch this one
LDTTWA - Let's do the time warp again
LE - Less or equal
LEMME - Let me
LERN - Learn
LFFBO - Laughing my friggin' butt off
LFLIATWP - Looking for love in all the wrong places
LFU - Least frequently used
LG - Lovely greetings
LGR - Little girl's room
LHM - Lord help me
LHO - Laughing head off
LHOS - Lets have online sex
LHU - Lord help us
LHU - Lord help you
LI - Laughing inside
LIFO - Last in, first out
LILO - Last in, last out
LIS - Laughing in silence
LIS - Lost in space
LIW - Long instruction word
LJBF - Let's just be friends
LKIT - Like it
LKITR - Little kid in the room
LLAP - Live long & prosper
LLTA - Lots and lots of thunderous applause
LMA - Leave me alone
LMB - Left mouse button
LMBBO - Laughing my butt back on
LMBO - Laughing my butt off
LMBOROTF - Laughing my butt off rolling on the floor
LMC - Let me check
LMC - Lost my connection
LMCOA - Lost my connection once again
LMFBO - Laughing my fat butt off
LMFBO - Laughing my friggin' butt off
LMHO - Laughing my head off
LMIRL - Let's meet in real life
LMJA - Let me just add
LMK - Let me know
LMKOAP - Let me know of any problems
LMOOI - Leave me out of it
LMSO - Laughing my socks off
LMTAL - Let me take a look
LMTCB - Left message to call back
LMWIS - Lick me where I sweat
LNGTMNOC - Long time no see
LNK - Love and kisses
LO - Hello
LOA - List of acronyms/abbreviations
LOBNAH - Lights on but nobody's at home
LOD - Letter of destruction
LOD - Level of detail
LOFLOL - Lying on the floor laughing out loud
LOHICA - Look out, here it comes again (military term)
LOI - Lack of interest
LOL - Laughing out loud
LOL - Lots of laughs
LOL - Lots of love
LOL - Lots of luck
LOLA - Laughing out loud again
LOLAROTG - Laughing out loud and rolling on the ground
LOLBAY - Laughing out loud back at you
LOLOL - Laughing out loud on line
LOLRTPP - Laughing out loud, ready to pee pants
LOLV - Lot's of love
LOMBARD - Lots of money but a right dipstick
LOML - Light of my life
LOML - Love of my life
LOMLILY - Light of my life, I love you
LONH - Lights on, nobody home
LOOL - Laughing outragously out loud
LOPSOD - Long on promises, short on delivery
LORE - Line oriented editor
LOTBS - Look on the bright side
LOTFLOL - Laying on the floor laughing out loud
LOTI - Laughing on the inside
LotR - Lord of The Rings (Tolkien)
LOTWTIME - Laughing out loud with tears in my eyes
LOU - Laughing over you
LRF - Little rubber feet (the little pads on the bottom of equipment)
LSFIAB - Like shooting fish in a barrel
LSH - Low, soft and hard (not fertile)
LSHHTCMS - Laughed so hard had to change my shorts
LSHIAPM - Laughing so hard I almost peed myself
LSHICT - Laughing so hard I can't type
LSHIH - Laughing so hard it hurts
LSHIPMP - Laughing so hard I peed my pants
LSHISOTS - Laughing so hard, I spit on the screen
LSHMBA - Laughing so hard my belly aches
LSHMBB - Laughing so hard my belly is bouncing
LSHMBH - Laughing so hard my belly hurts
LSHMSH - Laughing so hard my side hurts
LSHTTARDML - Laughing so hard the tears are running down my leg
LSHTTARDML - Laughing so the tears are running down my leg
LSKOL - Long slow kiss on the lips
LSP - Less sensitive person
LST - List
LTA - Less than average
LTBF - Learn to be funny
LTD - Limited edition
LTHTT - Laughing too hard to type
LTIC - Laughing 'til I cry
LTIP - Laughing 'til I puke
LTLE - Little
LTM - Laughing to myself
LTMC - Long time no see
LTMS - Laugh(ing) to myself
LTMSH - Laughing 'til my sides hurt
LTNP - Long time no post
LTNS - Long time, no see
LTNT - Long time, no talk
LTNT - Long time, no type
LTR - Letter
LTR - Long term relationship
LTS - Laughing to (ones) self
LTSGT2GTHR - Let's get together
LUAC - Lighting up a cigarette
LUIS - Library user information service
LULAB - Love you like a brother
LULAS - Love you like a sister
LULU - Locally undesireable land use
LULU - Locally unwanted land use
LUMU - Love you, miss you
LUSER - Loser user
LUV, LV - Love
LUVU, LY - Love you
LUVYA, LY - Love ya
LUWAMH - Love you with all my heart
LW - Lazy write
LWR - Launch when ready
LY4E - Love ya forever
LY4E - Love you forever
LYB - Love ya babe
LYCYLBB - Love you, see you later, bye bye
LYK - Let you know
LYKYAMY - Love ya, kiss ya, already miss ya
LYL - Love you lots
LYLAB - Love you like a brother
LYLAS - Love you like a sister
LYLB - Love ya later bye
LYMI - Love ya, mean it
LYMY - Love you miss you
LYN - Lie in
LYN - Lying
LYVM - Love you very much
LYWAMH - Love you with all my heart
LZ - Loser!