A not-yet popular acronym for the phrase "In case you didn't know". Is sometimes confused for trying to say "Icy Dick"
Me: So ICYDK I am totally tired
Idiot guy: What?!?! Icy dick? Grooss, man!
Me: Go fuck yourself
Idiot guy: I already am *wink*
by Sue Pirnova May 15, 2008
Get the icydk mug.
Acronym for "in case you didn't know", used when trying to keep long winded posts in internet forums and chat rooms brief.
INCYDK, I am so tired today because I was on the internet all night long.
by I:A:N May 2, 2005
Get the ICYDK mug.