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desu

What does desu mean?

A Japanese polite sentence-ending verb (roughly 'is/are'), famous in Western fandom as a stereotypical 'weeb' verbal tic tacked onto sentences for effect.

"He ends every message with 'desu' to sound anime, it's desu."

Origin

Japanese です (desu), the polite copula.

Frequently asked questions

What does desu mean?
In Japanese it's a polite sentence-ending copula meaning roughly 'is' or 'are'. Online it's memed by weebs who tack it onto sentences to sound anime.
Why do weebs say desu?
It's used as a stereotypical 'weeb' verbal tic, added to the end of sentences (often in English) as a joke or affectation.
Where does desu come from?
From standard Japanese grammar (です), where it's a normal polite copula.
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Slang definitions: FreeDict original editorial.