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1 definition by PhilosophicalCAT

 
1.
Verb: to turn one's baseball cap 180 degrees, so that the bill is in the back, thereby showing how serious one is about whatever they are about to do.
"I thought that nigga was bluffin' till he southbilled on me. Nigga pulls a southbill, you KNOW shit be goin' down."

~The Dutchess of York
by PhilosophicalCAT May 20, 2009
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