Top Definition
A large several inch exhaust commonly found on rice burners. Hence named because they commonly appear at a step angle and are large enough to fit medium to large size fruit.
That civic has a helluva grapefruit cannon.
by roberth March 01, 2011

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×