1 definition by mrbackwerds

Top Definition
when your train of thought is disrupted by a beautiful woman walking by and you can't finish your sentence and or work. when you have pussy on the brain... for a little or all day.
"I haven't done any work this week they moved my cube next to the hottest puma..... i have a serious case of boxbrain"
by mrbackwerds September 25, 2007
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