In Elizabethan slang, “nothing” was a term for the female genitalia
Hamlet: That's a fair
thought to lie between maids' legs.
Ophelia: What is, my lord?
Hamlet: Nothing.
A term used to describe My Chemical Romance's current condition
Person 1: Hey! Watcha listening to?
Person 2: Nothing.
Something that is impossible. Like how everyone says 'Nothing' is impossible ". Therefore nothing is something that is impossible.
Person A: Watcha doin?
Person B: Nothing.
Person A: IMPOSSIBLE!