Verb: an unsuccessful attempt at trying to sneakily royally screw someone out of money. (chimp-fucking)
Noun: (Chimp-Fucker) One who gives off the impression and/or is caught in the act of trying to screw someone royally.
Jimmy: That Terminex guy was trying to charge me $1300 for Termites when it turns out what he was looking at was only water damage.
Danny: He was trying to Chimp-Fuck you!
Pimp: Where's my money?
Prostitute: That's my money!
Pimp: You're just trying to chimp-fuck me!!!