noun
permanent suspension; permanent ban
Used especially for online accounts, services, or memberships that are permanently deactivated or banned, often as a penalty. The term is a metaphorical extension of 凍結 (freezing) with 永久 (permanent).
See also: 凍結
規約違反でアカウントが永久凍結された。
My account was permanently suspended for violating the terms of service.
永久凍結されたユーザーは二度とサービスを利用できない。
Users who have been permanently banned can never use the service again.
Compound of 永久 (permanent) and 凍結 (freezing, suspension). The metaphorical use of 凍結 for account suspension is common in Japanese internet terminology.