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to beat on somebodys ass, or to jump someone who has been talkin some serious shit
Joe: Yo that bitch dan was talkin shit about us!!

John: WHAT!! we finna sham on a nigga!

Joe: Yea we finna sham on his ass
by freakcaligula February 09, 2009

Words related to Sham on a nigga

brawl fight jump kill murder