Top Definition
BFHO is an acronym for Big Fucking Hard On. A popular expression in the 1960's, BFHO was a form of sarcasm meaning that something thought to be a big deal was nothing to get excited about at all.
Dude 1: I got the job at McDonalds!

Dude 2: BFHO

Dude 1: You're right, BFHO
by Dr. Foo September 21, 2008
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