To have silent sexual intercourse on the floor with minimal clothes removal, as to avoid discovery of fornication. Usually done by people who still live with their folks or prudish friends.
by gothaliciouswithcheeze February 13, 2014
Get the ninja bangmug. by Bigmike6726 March 17, 2017
Get the Playing Ninjamug. or Bar-inja -- A well versed barista who has a plethora of good vibes to offer. Has long "drummer-esque" hair and makes a mean latte. Has broken many glass objects in the past but in order to reconcile with the universe, has since rescued a glass from deaths doorstep.
by MoneyBeanZ May 12, 2021
Get the Ninja-ristamug. by Mort702 August 18, 2019
Get the Bin Ninjamug. A person sent in deliberately to have sex with someone's girlfriend with the intention of her significant other catching them in the act so he breaks up with her.
by TK37246 February 12, 2014
Get the Penis Ninjamug. by Daisukiii August 2, 2023
Get the Street Ninjamug. by Bart the Honorable December 12, 2020
Get the Ninja thundermug.