Top Definition
A boner that happens randomly and unexpectedly. Usually it is not a good thing. They generally tend to happen at the worst possible time or a time when it is not acceptable or called for. Sometimes it happens when a man is not even turned on or horney.
Man, it was weird. I was just sitting in math class and boom, random occuring boner. It made no sense, there wasn't even a hot girl in the room
by Tojo Hiroshita November 24, 2010

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.

×