Volcano Dick 

When one cums uncontrollably like a volcano.

Girl #1 "Hey girl, we sure gave my husband a volcano dick last night huh?"

Girl #2 "Yeah we did, he wouldn't stop cumming!"

Volcano Dick by ThePonyLover92 July 2, 2017

Volcano Dick 

When you are so fat that the skin around the base of your shaft becomes so plump that it starts to engulf your dick.

How big was his dick?
I’m not sure, he had a volcano dick.

Volcano Dick by ggnoodles July 23, 2018

When in Rome, don't wash your dick or a volcano may erupt and kill you. 

A common saying

Austin: you know what they say, "When in Rome, don't wash your dick or a volcano may erupt and kill you."

Jacob: Yea man, totally, that is what they say.

When in Rome, don't wash your dick or a volcano may erupt and kill you. by Dr.Write March 25, 2020