The person you're compelled to fuck, even though they're not the hottest/sexiest/smartest 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 25, 2009
the one you sneak around to fuck, most likely somewhere that you are not known. you make a pact with her not to tell anyone because this is your Shamefuck
This girl was so {ugly but had a banging body, so I had her to meet me in a dark} alley and had my way with her, Sometimes ugly pussy is the best, because they will do most things that you want in bed This Shamefuck must be kept secret
by Fact One November 26, 2015
Shamefuck: Someone who pressures another into sexual contact out of guilt or shame. A manipulative tactic that uses guilt and shame to coerce someone into sexual conduct in order to be punished or make up for something; to make someone submit to sex by degradation or shame.
He is making you feel guilty so he can use you however he wants; he is trying to get to shamefuck you.
by Listopad September 21, 2015