The situation where sexual relations in an automobile are interupted by a homeless person asking for money.
by sextoaster December 12, 2004

Where shit drys in your ass after its been improperly wiped and when you scratch your ass it falls out like dust and it gets all over the place.
by Eliott Johnson June 22, 2007

An act of pleasuring ones bum on a warm radiator while ingesting food stuffs of extraordinary proportions. This is often done during a break in work or at the stroke of midnight. Observers can often seem bemused and have to be treated for mild shock as the belly of the beast enacting this routine sends one in to a state of despair.
Why on earth is Radiator Bumming so good?
Answer: It is the only thing that understands my needs as a woman
Answer: It is the only thing that understands my needs as a woman
by MrTimtimsta March 2, 2009

"Mate, if you do that again, I will banter bum you so hard..."
"Did you hear what happened to Simon the other night?"
"No?"
"He got banter bummed by his cousin"
"Did you hear what happened to Simon the other night?"
"No?"
"He got banter bummed by his cousin"
by LT101 April 16, 2012

Someone who only has a job because of the government bailout. Usually someone doing construction or something similar on government owned property.
Phil: I wish they would stop redoing this street, it's the third time this year.
Ian: Yeah, all of these workers are bailout bums.
Ian: Yeah, all of these workers are bailout bums.
by Perfect Situation June 15, 2009

when one who is partial to sleepwalking, whilst horny, accidentally bums another in their sleep. (male/female/sheep/ect) sleep bumming.
a prime example of sleep bumming would be a person suffering from sever sleepwalking, who had fallen asleep next to their best friend after consuming 3 viagra (for fun) this person would then proceede to "sleep bum"
by ineedtogetagrip March 11, 2010

Somebody that cannot afford their own ciggies and releaves their nicoteen adiction off other's smokes.
by P Biddy July 4, 2008
