by fo shankle February 09, 2010
The largest land penivore of all time. Preys on all types of penises, regardless of shape or size. While larger penises such as the BBC (Big Black Cock) are a difficult prey to take down, the Slutosaurus Rex swallows them with ease; sometimes consuming as much as 4-5 per night to satisfy its massive appetite.
by gmanator October 14, 2011
by FrankoBastid February 16, 2010
When a person is participating in the act of being Try Hard, a person who will try to win at all costs even if you are just trying to have fun, can be described as a Tryhardosorous Rex.
(Family is playing monopoly; John is Tryhardosorous Rex in this situation.)
John:YES! I PASSED GO.
Becky: Darn, I'm in jail.
John: TAKE THAT BECKY!
Timmy:(on the side) Wow, John is such a Tryhardosorous Rex.
John:YES! I PASSED GO.
Becky: Darn, I'm in jail.
John: TAKE THAT BECKY!
Timmy:(on the side) Wow, John is such a Tryhardosorous Rex.
by Bryce Cason February 16, 2009
A Dinosaur from the Jurassic Period that was the king of the dinosaurs, at least in the department of shooting huge dinosaur loads on other smaller dinosaurs (usually slutty meat eaters.)
Caveman: What happened to you? Another Caveman Covered in Semen: Me hunting and a Skeetosaurus Rex stole my kill, and had his way with me.
by The Red Hat Kid August 31, 2006
Person 1: OMG she totally stripped in class!
Person 2: My boyfriend broke up with me just to watch!
Person 1: What a Slagasaurous Rex!
Person 2: My boyfriend broke up with me just to watch!
Person 1: What a Slagasaurous Rex!
by random people that love you January 03, 2011
Phil: Chris is kind of a douchebag, but he's can be cool sometimes.
Mike: No, he's not cool, he's a Douchebagasaurus Rex.
Mike: No, he's not cool, he's a Douchebagasaurus Rex.
by BrotherSport April 04, 2009