A Fat, Ugly, Retarded, Shit-Head; esp. one who has never had a girlfriend and pwns at video games.
Guy 1: Dude, did you see that guy? He got fourty kills without dying!
Guy 2: Yeah, but did you hear how nerdy he sounded? What a fursh!
Girl 1: Hey, did you see that ugly new kid?
Girl 2: Chah, what a fursh.
The third cheerleader from the end is extremely fursh.