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A blunt reply to a statement that is obvious; sarcastic agreement--"oh really?"

Synonym: no shit
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!
no duh by VAKI5 May 14, 2005
Related Words

no duh detective 

Nicer way of sayin no shit sherlock. Used commonly at my school by the youngsters.
Nerd- Man..i really do suck. I need a LIFE!

Kool dude- No duh detective
no duh detective by R@nd0m March 4, 2008
(can be 'no da!' as well)
A phrase used by many people who were in grade 5 or 6 in 1995. It means a sort of childish 'no shit!' Has been researched extensively by linguists, especially in Australia.
"I reckon it's gonna rain today."
"No duh!"
no duh! by Bec December 13, 2003

no sh-duh! 

a word you can use when almost saying no SHIT but an adult comes in and changes SHIT into DUH
(IN the swimming pool)

bob:hey diego your hair is so wet!
diego:no SHIIII
*adult comes in*
diego:no SH-DUH!,STUPID! -.-'
no sh-duh! by whiterice696 June 18, 2011
Mrs. Vance walks in the room and Pete says yo man she is fuckin fine. i say No Duh man.
no duh by kurtis November 20, 2003

Journal of No Duh 

Common Sense. When explaining something, it can be used as a citation
A professor is lecturing and the bullet points in the PowerPoint are completely obvious and didn't need higher education to figure out.

Professor: "These explanations are strait out of the Journal of No Duh"
Journal of No Duh by Midnite Ninja February 25, 2010
More from Urban Dictionary

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
Boffin by Agnon February 11, 2023
Word of the Day on October 3, 2026

Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Pee Calculus by anorlondo October 1, 2026
Word of the Day on October 2, 2026
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