buckle up

verb

Definition of buckle up 

intransitive verb

: to fasten one's seat belt

First Known Use of buckle up

1962, in the meaning defined above

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Time Traveler for buckle up

The first known use of buckle up was in 1962

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Rhyming Dictionary: Words that rhyme with buckle up

Nglish: Translation of buckle up for Spanish Speakers

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