An overly expensive car in Grand Theft Auto Online that has a parachute and missiles. When you drive this car, the slightest amount of damage will send you into debt
“Hey did you ever buy the Ruiner 2000?”

“Yea, but now I’m in crippling debt
by Obpyt August 16, 2021
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A person who always ruins or fucks up your high when you smoke with them. The things they do to ruin you high include but are not limited to: not sharing food with you but with everyone else, poking you, teasing you with food, being very hyper and annoying, and over exagerating their high.
person 1: im hungry.
high ruiner: too bad you cant have any of my food.
person 1: what the fuck? you gave him food.
high ruiner: well im not giving you any.
person 1: fuck you, you stupid ass high ruiner.
by dillon c August 5, 2006
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A fat or ugly cheerleader or baton/ flag twirler wearing a short skirt, tight pants, or a leotard, Usually marching in a parade.
"This marching band is pretty good."

"Nevermind, all the baton twirlers are parade ruiners."

-or-

"This parade is full of parade ruiners."
by Doublewolf October 21, 2009
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A photograph in which one person looks like shit and therefore brings down the overall quality and potential of the memory.
Duder 1: "Whoa dude your girl is looking hot in this club pic. Why come your ass is all sweaty and looking like doo doo?"

Duder 2: "I know! Fuck! It had so much potential."

Duder 1: "Way to go you pic ruiner."
by westfalia February 9, 2010
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A person who sucks the fun out of anything!
Don't listen to Sally we should totally buy a llama for the apartment! She's such a fun-ruiner!
by Every Guy In The World! April 16, 2011
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Someone who ruins a good friendship.
In some scenarios the friendship ruiner is of the opposite sex thus "bros before hoes" or "chicks before dicks"
Douche, satan, bad person, hoe, Friendship Ruiner
by montana5 April 23, 2015
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1. someone who allways tells you what is going to happen in a movie, or on the next episode of a show.

2. someone who accidentially tells you what is going to happen in a movie, or on the next episode of a show.
"charlie is gonna die this episode." said josh
"you are a movie ruiner!" said danny
by Sir2490 May 21, 2007
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