1. Verb: The act of recognizing when a fart is not a fart, and the sudden clench of the buttocks, preventing an otherwise embarrassing situation.

2. Exclamation: "Oop!"
oop! - verb / exclamation"
Example 1:
"Oop!"
"What?"
"Nothing"

Example 2: Tommy loves burritos, but after that last "oop", he'll be sure to wear a brown string on his finger so he remembers not to fart today.
by onlikepopcorn September 26, 2013
Get the oop! - verb / exclamation mug.