Top Definition
The person you're compelled to fuck, even though they're not the prettiest/sexiest/hottest or smart or clever or remotely appealing to most people.

The guy is a pig. He's stupid and repulsive. I can't keep my hands off him. I don't know why I want him. He is my shamefuck.
by Fifi Forgetmenott April 24, 2009
5 Words related to Shamefuck

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