Top Definition
A water slug is when a submarine's torpedo tube is cycled with no torpedo or other weapon inside it. It sounds like the submarine (whose job is to be quiet) has shot a torpedo and is very noisy
We shot a water slug at the target
by SubMan758 February 04, 2014
5 Words related to water slug

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.

×