Definitions by Derpa Derpa Derpa

Bindi Surprise 

The act of shitting in a persons mailbox, then placing a firecracker in the shit and lighting it. The goal is to see how long it is until the person has to buy a new mailbox.

"Dude! Last weekend was sick! We got really drunk then went and had a Bindi Surprise in somebodys mailbox!"

Bindi Surprise by Derpa Derpa Derpa June 6, 2009