by tankd221 May 03, 2009
by Dr Right Now November 01, 2021
A Boo Ninja is a man who consistently scores women which are obviously way out of his league. Most often the Boo Ninja is spotted in bars working his magic. In this setting the Boo Ninja will look much like a scout master holding court with his young charges gathered around a camp fire. But the Boo Ninja is no scout master and his charges are not suburbanites but rather really hot young women and with each word the Boo Ninja speaks his audience will either laugh or compliment him on his wisdom as each competes to be his paramour {fuck} for the evening.
"Look at that bald fat fucking old Boo Ninja... he is old enough to be their fucking grandfather, he had the damn valet park his Yugo and yet look at all of that fabulous {highly fuckable} , boo {pussy} hanging on his every word like he is some fucking mullah {Islamic preacher} issuing a fatwa {religious decree}.
by Jack Magnum, Weremo hunter September 20, 2015
A type of Super Mario Maker term for revenge on a level creator. The term originated in early 2020. Going Boo Mafia on someone is when you go through a creator's list of levels, play them all, get all the world records, then boo every level. Sometimes as a bonus, you also steal all of that creator's world records. Going Boo Mafia on someone only happens when the person caused an offense, like if they leave a very rude message as a comment on one of your levels. It is not something to do to a creator for fun. It is only done for retaliation purposes
*twitch streamer: "This guy went out of his way to draw a middle finger as a comment because he couldn't beat the level. That's just rude. Now I'm gonna go full Boo Mafia on him. He will remember my name"
*twitch streamer: "I can't believe would leave 'F.U.' as a comment just because they didn't like my level. It's Boo Mafia time!"
*twitch streamer: "I can't believe would leave 'F.U.' as a comment just because they didn't like my level. It's Boo Mafia time!"
by falseface_music October 13, 2020
by UncleDarrell911USA December 02, 2022
They were created by the same person who made beanie babies, beanie boos are stuffed animals with big eyes.
Beanie boos.
by That stupid neighbor January 23, 2021
by r3ttah April 04, 2016