An exclamation you make when you realize something you should have known all along, or when the person you're with has a startling revelation about something obvious.
Bob: "Wow! I never knew that donuts were so bad for you!"
Sally: "Duh 101"
Francine: "I should have known he was married! Duh 101!"
Sally: "Duh 101"
Francine: "I should have known he was married! Duh 101!"
by zandwich October 05, 2010
When one makes a mistake. When one has a dumb moment and forgets what their saying. When one messes up on something.
by UrbanMage February 16, 2017
A quip uttered after a stupid quido from the New York Metro area (long Island, Brooklyn, Etc...) says just about anything about anything. Since the Quido is typicaly very stupid and non-sensible "fuckin-Duh" pretty much somes up his/her statement which is often preceded by "fuck" or "fucking (fuckin)".
"Uhhhh duh yo, yeah I could fuckin kick his ass even dough I am 5'3" tall, fat and stupid with a fake tan." Anyone listening who is sick of looking at stupid Italian (southern hertitage) quidos simply say or think "A fuckin Duh!"
by willkillyou August 01, 2009
by gabo.goldberg October 04, 2020
by Matt Clifford January 13, 2009
Egads! I completely forgot to turn off the circuit breaker before sticking my penis across those bare wires, duh football!
by Dentar June 23, 2006
by Big Hungry avalong April 22, 2009