2. Getting a "big one" that resembles the shape of a trombone.
3. Getting a "big one" when catching the eye of a particularly attractive or sexy band player who just happens to play the trombone.
Dude 2: Hide it quickly! People might see it's distinct shape!
Dude 1: Man, he/she just gave me a tromboner!
Dude 2: Don't hide it, it's a symbol of pride!
footballer- "hey tromboner!" "hahaha"
trombonist- ~mumble~ "douchefuck"