1 definition by cahill4554

Top Definition

To experience something which turns one off or makes one lose sexual interest in the current situation.


hard on
Bro 1: Bro I was just watching these two chicks going at it but it was all downhill from there.

Bro2: Geez bro, that sounds great, what happened?

Bro1: One of them whipped out a dick, gave me a total hard off.

Bro2: Bonerkill and a half, man.
by cahill4554 March 02, 2011

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