sitniš

1. small change; coins
   Imate li sitniš za parking? — Do you have any change for parking?
   Nosim sitniš u džepu jakne. — I keep my coins in my jacket pocket.
2. colloq. peanuts; trifle
   Za njega je hiljadu evra sitniš. — A thousand euros is peanuts to him.

Don't confuse it with kusur, the change you get back after paying.