Last Updated：2025/11/23

(Britain) To fasten one's seat belt. / (Britain, colloquial, derogatory, usually in imperative) To stop talking or chattering; shut up.

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belt up

Source Word

belt up

Britain colloquial derogatory imperative regional

Japanese Meaning

シートベルトを締める / （英国俗語、軽蔑的に、命令形で）おしゃべりをやめる、黙る

Before the car set off, she reminded everyone to belt up.

車が出発する前に、彼女はみんなにシートベルトを締めるように促した。

Sense（1）

(Britain) To fasten one's seat belt.

Sense（2）

(Britain, colloquial, derogatory, usually in imperative) To stop talking or chattering; shut up.

belts up

（ present singular third-person ）

belting up

（ participle present ）

belted up

（ participle past ）

belted up

（ past ）