Top definition
The behind of a British bum. Can be used to describe a person from Great Britain.
"Ey mate, bloody cold outside, ey?"
"Dude, you're such a bum arse."
by bumarse October 16, 2009
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2
1. The behind of a British bum. Can be used to describe a person from Great Britain.

2. Soreness or numbness of the ass from prolonged sitting.
1.
"Ey mate, bloody cold outside, ey?"

"Shut up, bum arse."

2.
"Dude, been sitting on the couch for 3 days straight."
"Wow, you must have a real bum arse!"
by bum arse October 16, 2009
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3
Bum arse or ass is used when something is dirty or useless
Boy: You cant have my soda

Girl: I dont need yo bumarse soda
by grunjoo March 04, 2006
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4
a insult to ur face or about your face if you r a bumarse u have to c a Dr
u r a bumarse shatit bumarse
by bobbie g November 23, 2004
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