A person is in "bum mode" when they're in the process of stacking cash and limiting spending on non-necessities almost completely.
Bum mode: X has $50,000 in the bank but still wears busted 5 year old shoes and has 2 pairs of jeans.
by Bumbaross October 12, 2008

by BorHotti August 7, 2011

Putting your finger in your bum to aid wanking if you have taken a load of oats and it's taking a while!
by J-Boner! October 9, 2008

by Nizzlebizzlenizzle August 23, 2011

by Andys Mom June 21, 2007

piss bum is what happens when u go camping and you need to piss in the bush and u laugh and get it all over your pants instead.
it is also emma's nickname.
it is also emma's nickname.
by piss bum April 9, 2005

a bum flap is wen a girl has a really really short skirt, thats rolled over so many times, its like a really thick belt, and so instead of being a skirt .. is a bumflap! (you see the link...), i.e. nothings left to the imagination, especially on a windy day...bumflaps are very common in secondary schools with the *were not even gonna hide were desperate for a shag* kinda girls
by iloveumore+more+more April 27, 2006
