Poop that is so uncontrollable that it comes without warning. A serious case of bum-rush has been known to project out of your nasal passages.
Guy Number One: What are you looking for?
Guy Number Two: I'm looking for some tissues I just had a bad bumb-rush.
Guy Number Two: I'm looking for some tissues I just had a bad bumb-rush.
by Israel & Needledick May 30, 2009

When two girls who are naked spread their legs while grinding and thrusting their clitori vigorously.
by Jillane Vos December 11, 2011

As two women endure in an excersie of bumbing their vaginas together in and aggressive manor sometimes breaking bones
by Steveopoulus June 06, 2017

The act of two homeless individuals or more engaging in sexual intercourse. Homeless couples and random homeless hook-ups can often be found in Porta Johns. The far more rare "homeless orgy" would be more exquisitely exemplified with that of an empty parking garage (see Time magazine's 1998 issue of "Sexual Vagabonds: The Story of Homeless Love Making In The Land of the Free").
Hi, this is Christine Stophler with Channel 8 news at twelve. Tonight we have a report on severe STD'S being spread within the homeless community. From filed reports, we have heard that a majority of these infections are the result from what many consider on the street as "unprotected- bumb sex". We go now to Joscelin in Nevadian Park with more updates on the situation at hand.
by DementedPhilosophy November 16, 2014

term used when dealing with a boy that does nothing for you or the relationship. Most of the time he just sits around and waits for you to do whatever it is he wants. Takes no initiative... sort of like a homeless bumb would. The "ass nigga" is added to add more emphasis to how lazy he is.
Girl: "Omg I'm so sick of Tyrone, we don't go nowhere we just sit in the house while he plays video games"
Girl's friend: "Girl plz, you need to drop him, that's a bumb ass nigga"
Girl's friend: "Girl plz, you need to drop him, that's a bumb ass nigga"
by NickyC18 June 30, 2011

by Slick Mikey March 21, 2003

by peeeeeeenisssss September 03, 2009
