buck up

verb

Definition of buck up

  1. intransitive verb
  2. :  to become encouraged :  brace up

  3. transitive verb
  4. 1 :  improve, smarten

  5. 2 :  to raise the morale of

Examples of buck up in a Sentence

  1. buck up, kids, it's not so bad as you're making it out to be

  2. a surprise presidential visit to buck up the troops

Origin and Etymology of buck up

2buck



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to fight against or to call in question

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