The dinosaur that all people love (especially girls that want to fuck with him) it is very recognized for his big, giant dick
by XX-DOGEBITCH-WOOf February 5, 2018
Get the Penisaurous-Rexmug. It is basically an insult that can easily enrage people of the gender known as female, because it implies that their clit is the size of a penis! Hence the "Rex" since the T-rex was quite a large dinosaur. It comes down to calling a girl a shemale.
by Charlie Schween June 21, 2016
Get the Clittosaurus Rexmug. by _#%^*> April 2, 2022
Get the Pimpasaurus Rexmug. by absolute firecracker from junh May 13, 2021
Get the lizasaurus rexmug. 
The drunk person in your neighborhood known for doing yardward with a beer in one hand and lawnmower in the other; Also known for walking his dog while drinking beer;
by Trev's Mom June 5, 2016
Get the Drunkasaurus Rexmug. by rex.oiz June 6, 2021
Get the razor(rex)mug.