The action of giving/threatening to give a tortoise as a present meant to seek revenge on someone for as long as the tortoise lives (approx. 100 years) for suffering caused from their actions. Commonly refered to as an RT.
Im totally going to RT Sally for moving away to Vancouver for so long.

Steph isnt responding to our messages, maybe a revenge tortoise will teach her a lesson.
by fairy in the water May 25, 2012
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South African slang for "definitely not"
Friend - Hey, Hughs in town. Do you want to go to his house and hit some bongs
Me - Hugh Newlands? The guy who packed a bag of my nicest clothes and went on the run?
Friend - Uh yeah, that Hugh. but he did say he was sorry and he has some A grade weed. So do you wanna go?
Me - Nortis tortoise
by Lanboi June 07, 2018
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When someone puts a washing basket on their back to look like a tortoise and performs a cock block by crawling onto a couple's bed whilst they are making intercourse
"i got completely undressed, put on a washing basket and cock block tortoised onto nat's bed who was shagging zach"
by jabbott August 18, 2011
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Verb: To take a shit. So called because the act of the sphyncter muscles, whilst pinching off the loaf, creates a guillotine effect upon the toroise's (the shit) neck.
"Hey guys, I'd love to go to the store with you, but I've really got to behead the brown tortoise right now."
by A Dub November 09, 2006
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An extreme case of Turtle Head, in which the victim is forced to take sliding baby steps and clench their butt cheeks in order to avoid a full on pant's crapping episode.
You suddenly realize you have turtle head. You leave your desk and take several steps towards the restroom only to experience the second stage of Turtle Head called, "Walking Tortoise Head". You clench your butt cheeks together and make baby steps praying for the strength and the luck to make it to the toilet in time to release this angry monster.
by Caedis T Yo April 12, 2011
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a sexual act involving a midget, Halloween decorations, baby oil, and a large sponge
Man, I would give that chick a "ukranian purple tortoise" any day, but i can't because her boobs are the same size.
by spoon on my nips March 09, 2009
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