# buckle up

idiom

Source: https://englishreference.com/idiom/buckle-up
Updated: 2026-08-10

## Meaning

To fasten one's seat belt or safety belt.

## Examples

- Please buckle up before I start the car.
- The road ahead is very bumpy, so make sure you buckle up tightly.
- The pilot instructed all passengers to buckle up as the aircraft prepared for a turbulent descent through the storm.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.