Jack Knuckles
A guy who can't stop jacking off. He's always on his phone looking at dirty pics. He's a total waste of space and smells like old pizza.
'Jack Knuckles is in the bathroom again. I swear he's gonna break the mirror.'
'He's been watching porn for three hours straight. I don't even know how he still has a job.'
'Jack Knuckles is the reason our class has a 10-minute bathroom break.'