Top Definition
(noun) A person who will listen while you vent and ramble about your problems at length. One who "soaks up" your rants.
"I make a good rantsponge, if you want to get it off your chest."
by fredrixa July 10, 2008

Free Daily Email

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

Emails are sent from We'll never spam you.