1 definition by Henners_
Noun; Another name for a penis which happens to not only be inadvertently petruding from one's trousers, but is also errect.
"Shit boys, check out that fucker, he's showing us an Open Mic!"
"Is it me, or has that old woman at the bar got an Open Mic?"
"Is it me, or has that old woman at the bar got an Open Mic?"
by Henners_ December 17, 2006