1 definition by tborg poppodopillus

when you have sex with a girl without wearing a condom.

Craig MacTavish was known for being the last NHL player to play without a helmet.
James: I got laid last night.
Trevor: You animal. Did you wear a condom?
James: No - I gave her the ol' mactavish
Trevor: Remind me not to have sex with any of your x-girlfriends. I will probably get aids.
by tborg poppodopillus April 10, 2009
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