A word, commonly used to describe a male who's levels of bitchassness are astronomical. Fuckboys have a way of fucking things up for the worse. They have an inability to get their shit done and when given a responsibility they pussy out and usually leave it for someone else to take care of. Cockblocking is one of their favorite past times as is creeping which are probably the only two things that are actually good at.
The term is mostly used by other males and females that know their shit while criticizing said fuckboys.
The term may NOT be used by other fuckboys calling out other fuckboys.
"Fuck Fat Joe!...fuckboy!!..pussy!!"
you: Cool how was it?
friend: When I got there, he said he smoked his weed and asked if I would throw down this time.
you: So did you?
friend: Yeah, he said he'll pay me back
you: Damn dude, you're dumb he's never gunna pay you back
friend: Why not?
you: Cuz dude, he's a straight fuckboy