Top definition
One who lubes up their rectum then takes a paper towel tube and slightly shoves it up their ass and then lets a gerbal in the tube and has it crawl around the tube and up your pie hole.
After Ned bought a new gerbal and stripped the toilet paper off the tube we all suspected he was a gerbal hider.
by Mike O'Malley May 22, 2003
Get the mug
Get a gerbal hider mug for your buddy Bob.