Top Definition
To expel a large fecal mass into a toilet bowl filled with water. To take a dump.
Excuse me guys, I gotta go launch a submarine.
by stainedpants October 13, 2005
6 Words related to launch a submarine

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.

×