To hobos going at it.
Bob-Those hobos are going at it
Jim-Their so cool
Bob-I wish I could have sex with a hobo
Jim-mmmm bum sex
by Trace_Trace_Trace August 30, 2005

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Top Definition
the act of taking somone up the bum.
or
the act of getting taken up the bum.
bornbad loves her bum sex!
by n00b March 31, 2003

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putting someones willy up another ones bum hole. thus bum sex. (anal penetration). WARNING! EXTREME PAIN!
Anna strapped on a dildo and gave Cassie bum sex.
by BumSexy April 07, 2005

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Word used as general adjective or exclamation, generally for something negative
As in "Oh no! I've been robbed! That's so bumsex!"
or
"Bumsex! I've been robbed!"
by bumlover February 01, 2008

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Bum sex is common a common slang for "anal sex, up the ass, and just raunchy". Alot of snowboarders like bum sex(girls) as you will see a many with stickers. Gay people like Bum sex :. they are gay..and like bum sex.

Bum sex is a great way to pass the time as its much more pleasursome for guys than it is for girls. Bum sex is a common pastime in American houses these days..heck, all houses..
Tanner likes bum sex from Liam, but David likes bum sex from Billy more
by Liam is my name January 06, 2006

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to thrust ones genitles back and forth up a womens anus, giving an orgasom. Very pleasurable for men, but not women, can be akward if not well lubricated
i want to bone you up your bum
by mike kapalski August 05, 2005

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The english expression "bum" refers to the buttocks. Therefore, bumsex this side of the pond would refer to anal sex.
Hiya love, fancy bumsex?
by Lord Football March 06, 2005

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