To be taking a huge shit, usually diarrhea. If you snezze suddenly, and all the shit comes out of toilet, and fly's back in your ass.
Phil ate at that shitty grease pit last night. He was taking a huge shit and accidentally sneezed, and he reverse bm all up in his ass!!!!
by 69 flipped July 2, 2014
Get the reverse bmmug. by Harry Dickson-balls June 18, 2011
Get the Reverse Baboonmug. There's a scene in that movie where Hallie Berrie is naked and she turns around and I swear I caught some reverse burger.
by Mr. Skknininaakjhjfg August 14, 2009
Get the reverse burgermug. Unlike a traditional mentor relationships, in which a naive younger person is tutored in the way of things by an older, more experienced teacher, a "Reverse Mentor" is a young person who becomes guru to an older person on new technology and style, like the internet, social networking tools, popular music, current fashion, etc.
"Get someone younger to keep you up to speed on all things twitter, disqus and friendfeed. Tom offered to lend me his reverse mentor—but I need my own!" - Maryam Banikarim, in The Daily Beast, July 12 2009.
by rlarrett July 11, 2009
Get the Reverse Mentormug. I've got major chafing down there from John's hair when he did the reverse birthday on me yesterday.
by SMAK418 September 28, 2009
Get the Reverse Birthdaymug. by Sir Dicks Alot February 9, 2009
Get the reverse tuckmug. by Cgaul November 19, 2016
Get the reverse hombremug.