Top Definition
Someone who demands attention or always needs help doing everything in Dinosaur-like proportions
"Bitch massage my feet, then take out the trash, clean the litter box, knit me hat, stand in the line at the dmv and I'll wait in the car until our number is called so I dont have to see the worst cases of people of walmart and some McNuggets."

"Fuck you, you evil Demandosaurus"
by NOneckHOBO January 09, 2010
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