A tero - A tero is a word that means nothing, but it’s used to annoy

A tero is a word that means nothing, but it’s used to annoy people who are too dumb to know it means nothing.

My friend asked me what a tero was. I told him it means nothing.

My teacher made me write a whole essay on what a tero is. It was pointless.

I told my friend a tero was just a stupid word. He was confused for hours.