Top definition
A godzilla-like creature in the webcomic MegaTokyo that can be rented by the hour, to create mass devastation. Basically the best thing ever. Part of the tongue-in-cheek commentary Megatokyo makes on the world of Japanese movies, anime, and manga - in the comic you have to get a permit before you can, for instance, have a battle between two giant robots and a horde of zombies that levels all of Harajuku. Which will be rebuilt in a few hours.

Largo loves his rent-a-zillas.
Bystander: Aiiieeeee! What is that horrible monstrosity? Aieeee!

Piro: Oh...Largo, stop with the Rent-A-Zilla. We don't have the money.

by ZenGwen August 04, 2006
Get the mug
Get a Rent-A-Zilla mug for your mother-in-law Beatrix.