belt up

informal british

The phrase "belt up" is commonly used in British English with two primary meanings: fastening a seat belt and telling someone to be quiet.

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Definition

B1Travel

(informal, british)To fasten a seat belt, usually in a vehicle or airplane.

Example

Remember to belt up before the plane takes off.
The driver asked everyone to belt up before starting the journey.

B2Conversation

(informal, colloquial, british, derogatory)To tell someone to stop talking or making noise.

Example

He told his noisy friends to belt up during the movie.
Just belt up, will you? I'm trying to concentrate.

Similar

Terms that have similar or relatively close meanings to "belt up":

buckle up buckle in brace up safety belt buck up saddle up bundle up badge up nut up gear up tie up hitch up tie down tighten up rug up fasten down batten down tuck up ruck up butt up bear up bound up rein up hold tight hold onto your hat lock up hush up bind up zip up pipe up jacket up bung up pipe down stiff up tuck in belt loop hang tight shit up