Top Definition
Used in reference to a positive, often exceptional sexual experiencing involving two or more persons.
"I bet you and those twins had one huge bonefest last night!"

"Man, I'd like to take her to an all-night bonefest."
by Al-Mac May 23, 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.