Urban Dictionary: Defno

The opposite to Defo
It means definately not.

Person 1: Do ya wanna go into Town?
Person 2: Defno! It's too early.!

by Lloyd W.P February 17, 2008

when you see a girl and shes definately not hot

Guy 1: hey, you think that bitch is hot over there?

Guy 2: WTF, DEFNOOOOO!!!!!!!!

by masterswager July 05, 2009