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. To go into one's room and turn all of their clothes inside out, making it annoying when they ever want to change clothes. Similar to definition two of spacebag.
by zanuryx May 18, 2011
Get the Reverse Wardrobemug. When you see something so dissatisfying or distasteful that your penis retracts inside of your body and ejaculates.
Me and the boys saw this girl the other day and we passed her we were so disgusted that we all reverse nutted.
by Nuttbutt69 February 13, 2017
Get the reverse nutmug. When you go to rob a clerk or a bank but someone has a shotgun, bat, whatever weapon and mugs you back.
by eylmao February 3, 2018
Get the Reverse Muggingmug. by Cgaul November 19, 2016
Get the reverse hombremug. 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. by Harry Dickson-balls June 18, 2011
Get the Reverse Baboonmug.