Extension:Nuke

The Nuke extension makes it possible for sysops to mass delete pages.

Usage
Go to Special:Nuke in order to mass delete pages recently added by a user or IP address. The special page is listed under Special:SpecialPages as Mass delete.

You can also specify a pattern for the page title: the field accepts SQL wildcards, like.

A log of all deletions is maintained at Special:Log/delete.