Phrase used in the southern United States by hicks. Means "how are you doing/been?" Or "what are you up to?"
Whatcha know, Billie Bob? Been a while since I've seen you in the liquor store.
by RedneckAbroad November 28, 2017
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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 21, 2007
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