2 girls 1 cup owes it's origins to a film sharing the same title in which two young girls of appropriate age engage in socialy questionable acts including: consumption of one another's feces, consumtion of the regurgitated aforementioned feces, and aside from the shit and puke eating some pretty hot lesbian action. This having been explained, its defined currently as a description of anything traumatic and disgusting enough to shock, often relating to but not exclusive to the consumtion of vomit or feces.
Reginald: I say I say good sir have you seen the cinema film "The Human Centipede"? Farnsworth: No my good man I've not seen this feature would you recomend I take my best girl and her father? Reginald: Well my gentle sir I'd say that shits 2 girls 1 cup!
by FarleyWasGod December 03, 2010

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Any video on the internet that makes you want to reach down your throat, grab your stomach, and pull it out of your mouth.
2 girls 1 cup? Oh! I Love tea parties! Let's watch it! OMG WTF WHY!?!?
by suck a big fat juicy cock January 05, 2017

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The video of two lesbian women feasting on each others fecal matter, drinking each other's urine and then vomiting semi-digested urine and fecal matter into their mouths. All of this is filmed and a sad violin music is played in the back-ground. These types of videos (2 girls 1 cup, 1 guy 1 screw driver, 1 guy 1 jar...) are shock videos wich include genitals and blood, semen, more blood, jars and to top it off it will ruin your life so DO NOT watch any of the videos above
'Dude you should watch 2 girls 1 cup!'
'What is it?'
'It's a video of 2 girls eating their shit!'
'And why should i watch it?

'Cuz its like a drend bro'
Moral of the story: watching two women eating shit, or a guy pulling a screwdriver out of his penis and just barely breaking his penis in half is NOT cool. Resist the temptation...
by shit master 3000 July 21, 2016

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2 girls 1 cup is a shock site containing a video from the Brazilian Scat porno, Hungry Bitches. The video starts off by playing Herve Roy's Lovers Theme on piano. Two women begin making out, and has the disguise of it being your typical lesbian porno. It's not. One of the girls shits in a cup, she eats it then vomits it into the other girl's mouth, they then rub it over each other for the remainder of the film.
Person: After watching 2 Girls 1 Cup, I had to stop eating chocolate for a month.
by Dinoman July 29, 2015

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it starts off with some hot lesbian action ( NOT FOR PPLZ UNDER 18!!) and then one of them shits in a cup and they start eating it and puking it out into each others mouths and doing sexual acts with the shit. DONT WATCH THIS VIDEO IF YOU HAVE A WEAK STOMACH!!!
"Dude, you seen 2 girls 1 cup?"

"Yeah that shit was nasty!! Who would do that??"

by Kyte May 15, 2008

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The most nasty video ever. First, 1 girl is sucking the other's tits. Then, one poops into a cup and they eat it. Next, they vomit up the poop into each others mouth.

*WARNING* if you watch this video, you might vomit or be scarred for life
Dude, did you see 2 girls 1 cup? I thought oh my fucking god, those girls should go to hell!
by spottedstar1123 December 26, 2011

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A ballin ass movie withh doo-doo n throw up
dude103 "2 Girls 1 cup is sooooo ballin"
Dude608 "I kno bro"
by Sum Guy Online July 12, 2008

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