look up any word, like hipster:
 
2.
just to let you know
Jtlyk, your zipper's not zipped.
by Little Ari C(: February 16, 2009
 
1.
Just to let you know
jtlyk my name is not Bob
by .:Balderdash:. April 21, 2004
 
3.
Just to let you know.

Used to inform people of potentially useful information.
Joe: I was at the movies yesterday.
Jane: Oh, what did you go see?
Joe: Star Trek. It's completely worth the 10$ jtlyk.
by fellkin June 11, 2009
 
4.
acronym for "just to let you know" usually used in a not so serious conversation
J.T.L.Y.K , I can't go tomorrow.
by qwan allman July 29, 2008
 
5.
~Just to let you know.

synonomous wih "btw" this is for those who like to get fancy with their internet slang.
On Aim:

jack- ima go afk for a while
alex- k. i'll still be on jtlyk
jack- what?
alex- just to let you know
jack- let me know what?
alex- just go afk already goddamnit -.-
by A smart dumbass January 18, 2010
 
6.
Just To Let You Know.
Why do people take pictures of themselves giving the bird? That's not attractive..or cool..jtlyk
by inthedark February 06, 2010
 
7.
"Just to let you know"
I've done all the homework JTLYK
by YOLOP May 06, 2014