Poison Ban

Type of ban issued on websites/games, where any account that's linked to banned IP adress, is instantly banned upon creation

This man was poison banned on this site, when he tries to create new account, it gets banned right after creation.

Poison Ban

A severe type of ban from a game or website where the offender's account is permanently banned and their IP is permanently blacklisted, preventing them from making any new accounts.

Roblox popularized the term "poison ban," as it became the commonly accepted term for such a ban.