mehemneheh

Pronounced as meh-hem-neh-heh. A general expression of frustration when you are either losing an argument or the person you are talking to keeps interupting or ignoring you.

Person A: Hey guys-
Person B: Oh my God, did you hear what Joey did last night?
Person A: Guys?
Person C: Was Joey the guy with the long hair and glasses?
Person A: Guys!
Person B: Yeah.
Parson A: Mehemneheh!
Persons B and C: What?

change monkey

A derogatory term for a bank teller or cashier. Also used when you are pissed off at the person acting as "banker" when playing Monopoly.

Sorry I'm late, there's a new change monkey working at the coffee shop.

or

Gimme my change, change monkey!