Bum-blast 

When you squat in the shower and sprayy our butt hole for fun.

Hey Matt I just had a bum-blast

Bum-blast by Tin car May 14, 2015

bum blast

anal penetration

His boyfriend enjoys a good bum blast with extra lubricant.

bum blast by BR2112 May 20, 2009

bum bum blast

getting raped up the ass while you are bent over

Dropping the soap in the shower and bending over to pick it up

bum bum blast by Scott December 21, 2003

bum bum blast

the breaking of wind from someones bum

see fart

"whats that smell??"
"jerry just did a bum bum blast"

bum bum blast by dontstartaband August 31, 2006

bum blasted 

Taken by surprise and not in a nice way.

We got bum blasted today. Everyone was layed off.

It's April 15th; we're going to get bum blasted today.

bum blasted by RobbieJ December 24, 2003

bum blasting 

The term bum blasting comes from the more well known or more commonly used term known as "bum blaster". These terms are often utilized when describing the nature of sexual intercourse between homosexual males.

"Those two homos spend all of there time bum blasting each other. Bum blasting is their life".

bum blasting by Diablo74 July 31, 2016

bum blaster 

when two gays fuck hard in the ass.

Fuck me in the ass you bum blaster.

bum blaster by ashtay January 22, 2008