fuck boy /ˈfʌkbɔɪ/ noun6 •(slang, vulgar) A young man who sleeps with partners without any intention of having a relationship with them.Nah dude, I can't ever go steady. I'm a fuck boy through and through. •(vulgar, offensive) A weak and contemptible man.“You're not a fuck boy, but you keep on fucking up and I'm tired. My heart is tired T.” — 2013 •(vulgar, offensive) A contemptible man.Although the loss was only pocket change to Future, his reputation was in jeopardy, and he couldn't overlook that.To do so would be equivalent to him inviting every fuck-boy to his glass front door. — 2014 •(slang, vulgar) A prisoner who provides sexual favors.The fuck-boy is not really gay. But he's powerless and so has no choice. — 2000 •(slang, vulgar) A prisoner who provides sexual favors to a stronger inmate, either as the result of rape or in return for protection and gifts. •(vulgar) Alternative form of fuck boy. formsfuck boys · fuck-boys