Thieves slang for "fence".
i.e. a dealer of stolen property
"this merchandise is hot. I'll have to wait at least a month before selling this to my Offman."
Cooper is an helpful friend, who despite knowing girls, never wants to get a girlfriend. He can be helpful with dating advice, but sometimes stubborn. Cooper loves trying to trick his friends into saying dumb stuff on a recording, and he is amazing at getting horrible photos of his friends.
Cooper! Stop taking pictures of me!
I got some weird looks from Cooper Offman yesterday.