The avocado of the prehistoric age. Green and often bumpy, the dinosaur means "Terrible Lizard". Just like the avocado; a terrible fruit. Dinosaurs are large reptiles, but many believe the CIA simply buried their bones to discourage time travel. It has worked, because obviously I haven't met Elvis yet. Curses.
I am not frightened of that 19 foot to 20 foot T-Rex dinosaur, because of its relatively stubby arms, despite its reptilian flare and tail intensity.
by Rawr Expert April 14, 2011

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Something old and slow to the point of obsolescence.
Don't bother buying that game for my brother. His computer is a dinosaur and cannot run it.
by AbnormalBoy April 16, 2005

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A dinosaur is a huge dick that is usually bulging.
My friend Blake does not have a dinosaur.
by Blake sucks dinosaur January 10, 2017

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The act of being drunk and high simultaneously
Yeah dude, she's a dinosaur
by A2huronpolo April 09, 2011

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A neeky person who is overly-fascinated by the sciences and spends more time with their calculator than on facebook. Rather than being embarrassed by their enthusiasm, a "dinosaur" is proud and they often distinguish themselves to others of their species by performing a "dinosaur dance" with their hands shaped as claws, often in public places.

Notable dinsoaurs would include Ross Geller of Friends and distinguished engineer Catriona McGill.
"ahhhh mate your such a dinosaur"
"Gosh, catriona is such a dinosaur shes whipping out the claws, trying to attract some scientists!!"
by madlibs88 April 27, 2010

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giant deformed lizards that died when a comet blew up planet earth one. presently in planet earth two the experts believe these dinosaurs all went to hell because they were never baptized and they also ate eachother. a large ratio of these demon lizards also had horns and/ or wings which some believe were now related to the giant horned bat. some dinosaurs that lived in water blew up to.
Tyranosaurus rex- known to be related to lenny from of mice and men hes the really stupid big one that everything.

Brontasaurus- known as the "freaks" of dinosaur culture due to their long "necks" which were connected to their "heads"

Terodactyl- most difficult dinosaur to spell out. coolest dinosaur as well as well as the ugliest.
by Mr. Biig Brain Archebold February 27, 2010

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a predator generally affiliated with drunkenness and hooking up on beds
elise is a dinosaur!
by little foot 1112 March 11, 2011

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A DINO-saur is a conservative "Democrat In Name Only", also known as 'Blue Dogs' who despite belonging to the Democratic Party do not share its progressive ideals and when push comes to shove vote against those very ideals.
DINO-saurs might as well be Republicans, because many voted against the Health Care Bill (HR 3962 - The Affordable Health Care for America Act), even though both President Obama and a majority of Democrats favored the bill. They're at heart conservative and Democrats in name only.
by SFProgress November 08, 2009

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