where you put your arse cheeks on some ones mashed potatoes when they are not in the room and let them eat it without them knowing :)
Dane wiped his arse cheeks on Chinas mashed potatoes when she went to use the toilet and watched her eat her dinner.this is spud bum.
by Daneo January 09, 2008
by No Gag Reflex September 17, 2010
by Nizzlebizzlenizzle August 19, 2011
Putting your finger in your bum to aid wanking if you have taken a load of oats and it's taking a while!
I opted for a Finger Bum Wank last night
by J-Boner! August 13, 2008
by Andys Mom June 01, 2007
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 12, 2006
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 09, 2005