Helmasaurus 

A penis where the helmet is of an overwhelming proportion.

Once I squeezed the helmet in, the rest was easy. I love my helmasaurus.

Helmasaurus by Stainage January 12, 2012

herpasaurus 

A very attractive person with an STD that you will still be willing to have sex with.

Nitish: "dude Jason, all these ichy red bumps I been havning are totally worth it."
Jason: "she must have been a real herpasaurus"

herpasaurus by Three amigos May 5, 2008

herbasaurusrex 

a herb to the gigantic scale

my neighbor is a huge herbasaurusrex.

herbasaurusrex by elassie January 11, 2008

Heliosaurus 

The greatest alpha to ever live, the biggest thundercock to ever exist in the mortal realm. They say his voice is chocolatey enough to calm poseidon during a devastating tsunami. The only one to reach near such levels of testosterone is the man, the myth, the legend, Rich Piana.

Damn, that great ape over there must be Heliosaurus!

Heliosaurus by ChadThundercock42069 August 20, 2020