1 definition by (Bryce)

Grassin

The act of saying something outrageous that is clearly not true or enormously exaggerated.

Guy 1: So, like 10 guys jumped me last night and i took them all on and won and then stole their wallets and then hooked up with all their girlfriends.

Guy 2: Dude, you're grassin.

by (Bryce) October 24, 2008