The symbol # i.e. mesh is known as the number sign, hash or – in North America – the pound sign. Babies and kiddies started calling it hashtag somewhere in the 2010s and it became one the most cancerous forced memes ever, breaking through from the internet into real life.
Bob: "I remember when the »fence made of brushwood» symbol was called »mesh»."
Connie: "»Mesh»?"
Bob: "Yeah, you know – the »#» sign."
Connie: "Oh, THAT fucking cancer...!"
an action used between two amegos, when theirs fists come together and turn 90 degrees in opposite directions. This action usualy comes after a legendary comment or action.