What is No Duh?
1.
A blunt reply to a statement that is obvious; sarcastic agreement--"oh really?"
Synonym:
1) No duh Ivan is the strongest one on the team; he stays late to work out.
2) You're going to get in trouble if you steal your teacher's notes. No duh!
2.
The pussy way of saying the phrase, "No shit."
Often used by twelve year olds around their parents due to the fact that they're not allowed to cuss.
Random 12 year old: Guess what! Spiderman shoots spider webs!
Other random 12 year old: No duh.
15 year old: Pussies.
See
3.
No shit man
Mrs. Vance walks in the room and Pete says yo man she is fuckin fine. i say No Duh man.
See