noun: ancient dinosaur that came from the ice age. has long neck and scales for skin. also has four fins and an oval body. it propells through the water like a penquin.
person one: woah man! did you see that giant swimming dinosaur?!
person two: i did dude! but that's no dinosaur! it's a plesiosaur! the plesiosaur ogopogo of canada's Lake Okanagan.
person one: you jeefe, shut up.
person two: i did dude! but that's no dinosaur! it's a plesiosaur! the plesiosaur ogopogo of canada's Lake Okanagan.
person one: you jeefe, shut up.
by sophiemae April 19, 2008
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These carnivorous creatures lack friends, and make themselves look really good because they also lack self-esteem. These creatures know that they are Plebs and thus they don't change. They feed on the penises of teachers, being massive arse-kissers. If they get detentions then their lives are over, then contemplate suicide.
Some Plebosaurus-Rexes do commit suicide and even the family members will dance on their overly-wide graves. Life is better this way as scientists like Steven Hawking know their threat on the popularity of others while P-Rexes are in a close proximity. Steven, and millions of others like me, want P-Rexes to be extinct from the planet as they are a large danger to humanity.
Some Plebosaurus-Rexes do commit suicide and even the family members will dance on their overly-wide graves. Life is better this way as scientists like Steven Hawking know their threat on the popularity of others while P-Rexes are in a close proximity. Steven, and millions of others like me, want P-Rexes to be extinct from the planet as they are a large danger to humanity.
Chris: Lol, I just owned him on facebook! Look how popular I am, Imaginary Friend!
Spencer: Don't be a Plebosaurus-Rex, Chris!
Chris: Oh no! A detention! Why!! My life is RUINED!! I'm always licking Mr. Lavender's arse!
Lewis: You're such a Plebosaurus-Rex.
Spencer: Don't be a Plebosaurus-Rex, Chris!
Chris: Oh no! A detention! Why!! My life is RUINED!! I'm always licking Mr. Lavender's arse!
Lewis: You're such a Plebosaurus-Rex.
by LemonyStuff February 23, 2011
Get the Plebosaurus-Rex mug.pen·io·saur (pen-nigh-o-s-argh'us, wre-cks-) A very large vagnivorous peninosaur of the Upper Crustaceous Period of North America, characterized by a small neck, large head and scaley skin. A vaginal intruder, the true king of the peniosaurs.
In a prehistoric times, it wasn't all that uncommon for a peniosaurus rex, to destroy a whole flock of ptwatodactyls.
by Mattie Macabre December 4, 2007
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