Top Definition
The scientific name for an extremely strong erection, usually occurring after a long period of no sexual activity
Hey Babe, I woke up this morning with Massive Erectus!
Wife: I want sex tonight
Husband: Well you will have to try and arouse the Massive Erectus from his slumber
Wife: I want sex tonight
Husband: Well you will have to try and arouse the Massive Erectus from his slumber
by Dale Menadue
February 03, 2010
