Ice cream flavor at Bruster's
A purple dinosaur is Kayla's favorite ice cream from bru (cherry) ster's.
by southhillshusky July 04, 2008
Term used by interveinous drug users, the big juicy vein chose into which the needle goes when injecting drugs.
"I'm just going to stay home and tie off the purple dinosaur tonight."
by collector girl October 26, 2007
A purple dinosaur is when your scrotum is soft and you squeeze it so hard it turns purple as it starts getting harder and harder.
I was so bored I decided to give myself a purple dinosaur.
by spodderman May 25, 2014