-zilla is an English slang suffix, a back-formation derived from the English name of the Japanese movie monster Godzilla. It is popular for the names of software and websites. It is also found often in popular culture to imply some form of excess, denoting the monster-like qualities of Godzilla.
This trend has been observed since the popularization of the Mozilla Project, which itself included the Internet Relay Chat client ChatZilla.
The use of the suffix was contested by Toho, owners of the trademark Godzilla, in a lawsuit against the website Davezilla and also against Sears for their mark Bagzilla. Toho has since trademarked the word "Zilla" and retroactively used it as an official name for the "Godzilla In Name Only" creature from the 1998 Roland Emmerich film.
List of -zillas
Some uses of the suffix -zilla include: