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Definition of Belt up
1. Verb. Refuse to talk or stop talking; fall silent. "The children shut up when their father approached"
Exact synonyms: Be Quiet, Button Up, Clam Up, Close Up, Dummy Up, Keep Mum, Shut Up
Antonyms: Open Up
Antonyms: Open Up
Definition of Belt up
1. Verb. (commonwealth) To fasten one's seat belt. ¹
2. Verb. (commonwealth usually in imperative) To stop talking or chattering; shut up. ¹
¹ Source: wiktionary.com
Lexicographical Neighbors of Belt Up
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