Rectal Ball Insertion. When a guy manages to get his testicle into a girl's rectum. To this day, there are no reported cases of the RBI.
We were getting bored with our normal routine, so last month I decided to go for RBIs.
It really, really hurt my balls but I got them in there. I'm up to 5 RBIs this season.
Prices shown in USD.
Type your email address below to get our free Urban Word of the Day every morning!
Emails are sent from email@example.com. We'll never spam you.