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

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

bumrucker

1. A person, place, or thing (aka NOUN) that habitually ruins/fails/destroys in some way. Used synonymously with crapper.

2. (verb) bumrucking - to fail to work, to ruin, or to royally fuck up a situation.

"My camera won't work again. This is the fifth time this week."
"What a bumrucker."

or
"It's a bumrucker of a car, doesn't even work half the time."
or
"You're such a bumrucking idiot, man. I can't believe you crashed your car into that fence post."

bumrucker by aishothegreat February 10, 2010