term given to sketchy meth-heads in or around a city
Its about 10 til, we are driving to Carl's Jr. And we see a Methasaurus Rex, barefooted as fuck! Welcome to Redding, CA.
by ericd000e August 31, 2010
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A meth user that has gone zombie from using too much meth for too long and who no longer needs food or sleep because they run on amphetamines and nuclear brain fuel.
The Methasaurus Rex went berserk when the drug dealer told them there were no drugs and ripped the fender off the dealer's car.
by Jamiesaurus March 11, 2021
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