When one becomes so increasingly sexually frustrated, he/she begins to fornicate with homeless shelters' inhabitants (most often while they sleep).
I caught that research associate doing a Gibson last night while serving food to the needy.
by ms November 4, 2004
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Never turn up to work cos ur to busy injecting heroin in newington usually
by Michael Jacko March 29, 2005
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When someone has a racist or homophobic possibly drunken rant (like Mel Gibson's many racist or homophobic rants), making you want punch them.
Teddy: Sorry I can't dance it's cos I'm not a faggot!
You: Huh?! doing a Mel Gibson UGH! *PUNCH*

Sheena: Eww you're such a dirty jew!
You: Huh?! doing a Mel Gibson UGH! *PUNCH*
by I'mthebedintruder[notreally] January 25, 2011
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