Top Definition
1. To perform an action that others would consider unwise or illogical.

i.e. I had a meathead moment when I ran that red light and got pulled over by that cop.
I had a meathead moment when I ran that red light and got pulled over by that cop.

That brain fart you had was a meathead moment.
by Papachopchop February 27, 2010
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