Making a loud and displeasing throw up noise when something discusting or displeasing happens.
Making a loud vomit noise for a reaction, or laughter.
i.e. during a silent work session in class, or when out to eat at a resturant.
When someone is dog ugly, fat, skanky, a hoe, stupid, anything not liked or approved of..
If we don't like your attitude.
Geremy: That guy with the beer gut was really hot!