Belt up
/belt ʌp/B1
PreIntermediate
1. To fasten a seatbelt or strap, usually in a vehicle for safety.
- Please belt up before the car starts moving.
- The flight attendant reminded everyone to belt up during takeoff and landing.
2. (Informal, chiefly British) To tell someone to be quiet or stop talking.
- Oh, belt up, will you? I'm trying to concentrate.
- He told his noisy classmates to belt up during the exam.
Synonyms:
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