Bum

1) your rear end
2)a very sexy individual who can be a bit of an idiot at times

ryan is a big but loveable bum

by xunbreakablex August 27, 2005

bum

Used to define any foul or particularily nasty smelling odor (ie. a steady floating buttbomb that clears a room and just won't leave no matter how much ventilation you provide).

Somethin smells like bum!

Aw man... it smells like bum in here!

Ugh! I smell bum! You should see a toilet about that.

by MatlockJB June 5, 2005

Bum

The thing you go pewpie out of.

"Sit your bum on that toilet and let loose!"

by Groovatron March 1, 2002

fatty bum bum

A fat person with some huge ass butt or booty.

Johny: do you know cee-lo Green?
Pat: you mean that fatty bum bum nigga?
Johny: yes
pat: I do know him

by Youngluu November 18, 2013

bum

someone who wont make a llama ninja out of balloons.

Josh is a bum

by verrry disappointed January 18, 2010

Bum

Used to describe someone extremely attractive: hot, sexy

Dayummm that guy was bum as mess

by srafa October 27, 2011

buM*

the hottest most sexiest and cutest man on earth =D***

I love you buM*

by princeSs* July 17, 2003