An acronym for a total random boner moment. It is classified by one obtaining a boner when one typically wouldn't have a boner.
Person 1- I just puked in the break room toilet (at work). Then decided to fap.

Person 2- WAT! I can't believe you had the energy to fap after vomiting. Did you force it?

Person 1- total random boner moment

Person 2- gotta love TRBM's.
by JColby January 20, 2012

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.

×