Top Definition
Having ogrewhelmingly hot sex while watching Shrek or Shrek 2.
Hey babe, let's take off those layers and have some hot sweaty Shrex with our pants half way down on your couch because your parents are in the next room.
by Shrek is love, Shrek is life January 26, 2014
Although some may believe it to be a play on words combining the popular characters name Shrek with sex the true form of Shrex is much more wild and free. Shrex is the act of gathering a large amount of your earwax overtime and forming it into a dildo which you then use to pleasure your partner before you take it and smother it over your dick. You then shove an onion in her ass and begin fucking her with your earwax covered dick using it as lube. As you achieve orgasm you have to do the roar and after you cum inside your partner she has to say "What are you doing in my swamp!". You then have to proceed to remove the onion from her ass and eat it. Butt Shrex is a similar form but putting the onion within the vagina and fucking the ass.
Person 1: "Want to get together and have some Shrex?"
Person 2: "Do you have a collection of earwax and an onion?"
Person 1: "No why would I need that?"
Person 2: "The true definition of Shrex is sex that involves onions earwax and various phrases."
Person 1: "That's nasty."
by azy66 December 29, 2014
Rough violent sex with a partner who resembles a hideous such as Shrek the Ogre or Evan Rogan.
Awww man I just had some nasty Shrex with connor earlier... he came 4 times.
by Alex Fontana October 05, 2012
To have relations with an ogre
"Me and Fiona had amazing shrex the entire night"
by Canine hunter August 30, 2014
The act of having sex after having consumed psychedelic mushrooms, or "'shrooms".

'Shrooms + sex = shrex
"Martha and I went to her family's cabin for the weekend. She talked a lot about how nature inspires her visual merchandising strategies, but then drank mushroom tea, smoked joint, and had interstellar shrex for four hours. It was insane. It was way hard to bust, though."
by Fashion Bath August 23, 2014

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