Verb: To complain about trivial things, similar to nitpick, but strictly for the sake of complaint. See also, nitbitching.

Noun: Could also mean "a very tiny bitchy person."
"My latte is way too hot to drink. I'm going to have to wait like, two minutes."

"Oh, stop nitbitching."

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"I can't believe that midget screamed at you for wearing white after labor day."

"Yeah, what a nitbitch."
by Miz Parker February 8, 2012
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