STFU

STFU, (shut the fuck up), is a word commonly used in texting and online chatting systems. It is to tell a person to be quiet and don't talk because your tired of them.

Although Kevin is usually funny, he made a very bad and offensive joke, and his friends told him to STFU.

Proton

A positively charged particle inside the nucleus of a atom, and is found on the atomic number on top of a element on the periodic table.

Man Jimmy's a fucking nerd he knows what a proton is.