What you find in your pants after an especially grievous fart. Unexpected, surprising. Can be used to describe an undesirable person.

Term used to refer to someone who insulted you with a greater knowledge of a fandom. Coined 5/28/14 in a Silmarillion fandom wank. (If the fartnugget in question is in a Tolkien fandom, "Taniquetil elitist" is an acceptable synonym.)

Fartnugget is used as a name to call someone when they are acting stupid or annoying.

1) A chicken nugget that tastes like farts
2) An idiot

Fartnugget means when you fart on a nugget

A useless piece of crap (often used in terms of group members).