Top Definition
Used as a quick retort or reply when somebody mentions something you know they know nothing about.
"I saw Jen the other day."
"Whatcha know about Jen?"

"Did you do the math homework last night?
"Whatcha know about factorization?"

"We saw Gorillas in the Mist the other day."
"Whatcha know about bathing apes?"
by balbir September 20, 2007

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