I am fishing for your Goombas - A fancy way of saying someone's trying to rip you off, like

A fancy way of saying someone's trying to rip you off, like a fisherman who only catches the biggest, ugliest Goombas.

My brother said that to my sister when he took her phone and her money.

My dad said that to my uncle when he borrowed $100 and never paid it back.

My friend said that to me when he stole my pizza.