Banhammer - Definition from theHotspot Shield Glossary
A banhammer is a term used on the internet and is considered internet slang. The term is primarily used on internet discussion forums and online gaming but has wide use generally on the internet.
The term “Banhammer” means a moderator wielding the power to ban someone from a forum or a game. It can be thought of as someone literally swinging a hammer and using it to eject someone by force from a particular location, but in an online environment. On forums and online games, there are often moderators who are employed to ensure discussions are kept civil and games are free of cheats. These moderators will have admin rights and will be able to ban users from forums or eject them from a game - This is where the term banhammer originates from.