Fuckboy

A boy with no balls, that talks to you for a while until you like him, he'll tell you that he likes you too, then stops talking to you for another girl at any given time. (Often not showing any signs of being sorry or explaining to you what happened/that it wasn't your fault or anything like that.)

Dude! John told me he liked me back yesterday!
Really? I heard he likes Susan.
What!?
Yeah, everyone's saying that and she's all over his Instagram.

Wow, what a fuckboy.