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*

by Sue Pirnova May 15, 2008

5 hour energy

Crappy 5 hour energy shot that students use to stay up to do homework.
It really just makes you jittery

"AAAAAH, I drank too many 5 hour energies!"

"This 5 hour energy is the reason for my success!"

by Sue Pirnova August 02, 2008