Ban hammer

[Mark Zuckerberg]

A ban hammer is an avatar depicting a club, used to threaten banishment by antisocial bullies who become moderators at forums

[Justin Bieber]

1. A term for the command line used to remove a person from a chatroom/forum/team.

2. A weapon used on MMORPGs for the specific purpose of eliminating n00bs.

[Tanya Shivari]

The term using the ban hammer is short for banning someone, if you are an [administrator] or a [moderator]. It is more often used at [forums].

[Tanya Shivari]

A slang term substituted in for banning, or exiling somebody from a chat channel. Also can be removed from other things, such as as a board, forum, team, etc; most often online.
Origins come from Starcraft where moderators were depicted with a hammer or maul as an Icon.

[Tina]

Term meaning to Ban morons from forums and the like.

This particular variant is mainly used in Halo Forums, and only by the top Admins.

Fictionally using a Gravity Hammer(from the Halo series) to
beat/destroy/smite but Actually Ban from Halo related forums.