Top Definition
acronym for Really, Really Big Man. This was a character of Rocko's Modern Life, who was really, really big and could see into the future with his nipples
RRBM has awesome nipples
by abhfks123 April 02, 2009
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.

×