When you squat in the shower and sprayy our butt hole for fun.
by Tin car May 13, 2015
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We got bum blasted today. Everyone was layed off.

It's April 15th; we're going to get bum blasted today.
by RobbieJ December 24, 2003
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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".
by Diablo74 March 11, 2016
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the breaking of wind from someones bum

see fart
"whats that smell??"
"jerry just did a bum bum blast"
by dontstartaband August 31, 2006
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