J
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