Jack mehoff
Jack mehoff is what you yell when someone skips out on paying you and then asks for more money with a stupid excuse.
He owed me $20 and then asked for $10 more. I said, 'Jack mehoff!'
She didn’t pay me for the pizza and then wanted a soda. I yelled, 'Jack mehoff!'
He missed my birthday and then asked for a gift. I said, 'Jack mehoff!'