Josh

A straight Chad who's for sure gonna be or is already in a college frat
That generic popular kid you'll see in every teen movie who, for some reason, makes fun of the losers or outcasts, like idk get a life, that should only stay in generic teen movies
That being said, he cares a lot about his friends and gf if he has one.

Andy: Omg I saw this guy messing with those guys who went to see Three Days Grace
Red: Yea I think his name's Josh

Mark & Gary

To pull a Mark and Gary is to a have sexual relation with another by touching yourself in front of the said partner and they do the same

Joanna- Did you hear about Emil and his ex last week?
Isabelle- Yea he pulled a Mark & Gary