The act of,at the beat of music, you slowly but firmly hump a tall margarita cup
Hey look at that dumbass he is have a cup party.
by Bigwdick February 7, 2018
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A party where the beverages, usually beer from a keg, are served in red plastic cups. see kegger
Theres a Red Cup Party at Jills on Friday
by Systemkicks September 3, 2005
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a typical party where everything that is being drank is poured into red, plastic cups. this is a stereotype, not a fact, but it is still very common amongst college and high school students.
dude, let's hit the red cup party!
by XDW December 5, 2007
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A "cool party" in which faggots get together with their "friends" and partake in drinking alcohol (or fucking coors light) from plastic cups and take many pictures of themselves posing with the cups to then later upload to facebook to show everyone how fucking cool they are.
"YOOO bro! i was so wasted last night at matt's house... i mean you can clearly see from all the facebook pix!! i don't even remember it!"

"i guess that faggot was at a plastic cup party last night"
by Skate Jibbergoon Bitch August 6, 2009
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Those porno videos like "College Fuck Fest" or anything like that when two people are having sex in front of a group of people at a party and they are all holding red cups.
Hey have you seen that red cup party with the blonde chick getting nailed?
by DJC777 August 28, 2010
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a party where alcohol is served (often from a keg) in red plastic cups, usually attended by college students
Jake is having a red plastic cup party while his parents are away.
by ccasey6 June 29, 2007
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When you walk into a local school function, and you can’t help but notice that the cups used to drink alcohol are red solo cups.
Terry walked into his New Year’s Eve party, only to realize that it was a red solo cup party. Terry got brain in five minutes.
by D’brickaJon Swaggins January 6, 2023
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