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The willingness to commit to one male based on the fact that you know his member would please you till death do you part
I had such a huge penis crush on that Belgian dude. I would've married his horse cock in a heartbeat.
by Dixlvr27 August 31, 2013
When someone has a crush on a guy's penis. The person most likely only likes the guy because of his penis size or what he can do in the bedroom. Although, a penis crush can turn into something more.
I have a major penis crush on Brett.

I dont really like Tom, I just have a penis crush on him.
by simmadana February 11, 2011