look up any word, like sparkle pony:
 
1.
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 02, 2005
 
2.
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 04, 2007
 
3.
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 27, 2010