While a girl is giving you a blowjob, you throw both your hands in the air, and slap the girl in the face with your balls.
Last night I gave that skank the roller coaster and ended up getting my left nut stuck in her eye socket.
by Johnny Longhammer May 15, 2008
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One's sister and cousin at the same time: the result of either a man producing two children with a set of sisters, or a woman producing two children with a set of brothers, making the female offspring a couster to the other child.
"Carlie is my couster; we have the same Dad but our Moms are sisters. That is, like, so totally freaky!"
by fartknocker101 December 14, 2009
Get the Couster mug.whilst feeling the thrilling excitement of riding a roller coaster causing the symptoms of sexual stimulation.
That coaster-wank was amazing!
by grannyfapple April 9, 2015
Get the coaster-wank mug.Paula rode the roller coaster down the hill, got scared and rode the roller coaster back up the hill where she lived happily ever after with her paraplegic man who was too good to live down the hill.
by Solid Mantis June 16, 2018
Get the Roller coaster mug.by steve-O April 7, 2005
Get the Roller Coaster mug.A facilitator of Pinewood Builders and The Architect of The Mayhem Syndicate who is really good at fighting in Roblox.
by PBFan January 19, 2021
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