When one tries to complement another, e.g. "you look extremely ravishing today", and reciver of the complement totally disregards the complement and throws it back into the complementer's face, this is known as frost.
The best example of frost was the televison show "Anamaniacs", where the pigeon always tried to complement his friend, but he somehow always got his ass kicked because he took the complement offensively.
Girl: "WTF?!?!? YOU'RE COMPARING ME TO A FREAKING PLANT NOW??? DO YOU WANA GET SHANKED BY MY MAN?"
Guy's friend:"Oooooooooo...... Frost......"
See also: frosties
"Awww man, I'm tired of smoking on the frosts...I want sum Kushage!
Those nugz are some straight frosts, yo!