Top definition
The frothy mixture formed by a mix of sand, lube and ejaculate common after having sex on the beach. Not to be confused with the 2017 meteorological thriller “Geostorm”.

Derived from the Ancient Greek word “gê”, meaning “earth”, and the English word “santorum
Hey bro do you want to see geostrum with me during its midnight release?
Wow that’s gross dude
by Wu-Tang Clan Name Generator October 19, 2017
Get the mug
Get a geostrum mug for your cat Rihanna.