When a person, either real or fictional, turns their baseball cap through 180 degrees so that the peak faces backwards to physically represent that they have switched into "go-time" mode.
by SjHawkins May 21, 2009
Get the southbill mug."You could tell that nigga was serious when he southbilled his hat."
"Southbill your hat, it's go time."
"Southbill your hat, it's go time."
by anoonamoos May 21, 2009
Get the southbill mug.by j-stroy May 20, 2009
Get the southbill mug.by Rustingway May 21, 2009
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