Origin: When a junkie (drug addict) buys heroin from an
unscrupulous ice cream van, the height of the service window denotes that he adopts a dinosaur-like stance in order to achieve his drugs into his filthy hands.
This, in turn, allows the phrase Scumbagosaurus to be used to describe any given junkie, as they will likely have had to adopt this posture in the past, or in every
single day of their existence.
"DAD!
What the hell is that on top of that bin
spitting blinding-glue at those
pensioners whilst pathetically roaring?"
That, my son, is a Scumbagosaurus. He'll be dead in five years. Lunch?