Top definition
1. not a problem

2. a person or thing that does not give one a reason to worry
Don't mind the window, it's no big deal.
by The Return of Light Joker November 16, 2011
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2
Used to sarcastically act like you aren't trying to brag about something that isn't worth bragging about. Should make it seem like you are bragging about it. Usually said in a sarcastic tone. Not to be used when something actually is a big deal.
Starbucks lady: "Total is $4.23"
Me as I hand her $4.23: "Exact change, no big deal"

or

Girlfriend walks in, me on the computer
Me: "Just checking the spiderman forums, no big deal."
by ProbablyBetterThanYou June 22, 2009
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3
something said after something amazing has been accomplished, usual said in a sarcastic to make ones self seem modest when in reality one is bragging. usually followed by "'cept it is"
i just got a 100 on my test! no big deal, 'cept it is
by cmacdaddy September 16, 2009
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4
The opposite of a big deal. The go-to catch phrase whenever you are presenting something in a humble light. This phrase is not sarcastic in any light and should never be confused to mean a big deal. It is by no means a big deal whatsoever, no big deal. Also not to be confused with yes big accord.
Guss: hey I just made a 57 on my exam.

Derick: Dang man that sucks.

Guss: Nah man I’m bringing me grade up from a 25, no big deal.
by Nobigdeal1 January 27, 2021
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