Bum Rocket 

When you poo and it exits your colon at over 30MPH

Guy1: I just went into the bathroom to take a large poo, and rather than having a normal bowel movement it removed itself from my ass so fast that it ripped my ring!

Guy2: Dude! you just bum rocketed!

Bum Rocket by Achmed Mgesturettegortoryfaggo July 12, 2010

Bum Rocker 

A smelly kid in everyone's Middle, Junior High, or High School who was always had greasy hair, smelled from about a block away and was always seen wearing a Metallica, Ozzy, Def Leppard, Pink Floyd, Led Zeppelin, Whitesnake, Poison, Deep Purple or other T-Shirt of the like. Typically wearing it for one week straight at the least.

Fox: You remember Matt Sanders, right?

Aaron: Who that Bum Rocker?

Myles: Yeah, the waste of time?

Fox: Yeah, well he's a total Otaku now.

Myles: Ugh! Don't remind me!

Bum Rocker by Emevas October 15, 2008

Bumpocket 

An annoying person. References the back pocket in a pair of trousers. Anything kept in it is annoying when you sit down.

Where are you? Stuck in the car park... some bumpocket has parked me in.

Bumpocket by Dank Spangle April 27, 2022