A person who prefers to use back over feck over fuck.
Joanne: Cutty your a real fuck boi!
Cutty: No Joanne you have me pegged all wrong I'm a feck boi!
Like a Fuck Boy but the opposite. Feck Boys normally don’t care for anything but vidya and normally only socialize with their dominant hand and their wee-wee.
Wow. Tyler didn’t slam mad puss this weekend? What a feck boy