Jack Knuckles
A guy who's obsessed with his own junk. He's always on his phone looking at stupid pics. He's a total POS and smells like a gym sock.
'Jack Knuckles is in the bathroom again. He's been there for 20 minutes.'
'He fapped so hard, his phone almost broke.'
'Jack Knuckles just sent me a picture of his junk. I blocked him.'