icydk 

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*

icydk by Sue Pirnova May 15, 2008

ICYDK 

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.

ICYDK by I:A:N May 1, 2005

IKYDK

An all new acronym for the phrase "I know you don't know".

Me: Do you know why mountains are funny?
I diot guy: Let me guess.
Me: IKYDK so don't even try.
Me: Because they're *hill areas*.

IKYDK by QueenOfEverything994 March 30, 2017

iydkmigthtky 

A song by Type O Negative. It means If You Don't Kill Me I'm Going To Have To Kill You

Person 1: Have you heard of Type O Negative?
Person 2: Yeah! I love their song IYDKMIGTHTKY

iydkmigthtky by ahnyonghasayyo January 31, 2019

Icydubb 

The most powerful druglord and blood gang member in the Glenmary area. He is currently located in the Southside projects where he is seen posted up at the liquor store everyday. He is highly dangerous and always comes strapped.

Yal niggas best be gettin back to yo block. Icydubb is about to roll through stapped!

<Icydubb rides by with an AK-47 and kills everyone.>

Icydubb by Tha Dubbfather himself October 23, 2008

IYDK

If you didn't know, or In case you didn't know

George Bush's birthday is July 6th, IYDK.

IYDK by Leo_Arthur January 6, 2007

Icydick 

Icydick is when you get Icy Hot, Bio Freeze, Vix Vapor rub, or similar product on your balls or dick and now you have Icydick. That shit hurts. This could have been accidental because your dick itched while some of this stuff was on your hand, or because you're weird and put it there. Whatever.

Dude i put vix vapor rub on my chest last night and itched my crotch, next thing i know i got Icydick!

Icydick by DontTryAtHome August 14, 2012