hagaloff
Hagaloff is when two people argue like they're in a classroom and the teacher is watching. They don't care about the price. They just want to prove who is the best at arguing.
'You're not even trying. I could haggle a kid into buying a whole store.'
'I'll take it for ten bucks. You're just mad I beat you at hagaloff.'
'You think you're smart? I could sell this to your grandma for half the price.'