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bulk up

verb

Definition of bulk up

  1. intransitive verb

  2. :  to gain weight especially by becoming more muscular

  3. transitive verb

  4. :  to cause to bulk up

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Examples of bulk up in a Sentence

  1. she bulked up her hair with one hand as she reached for the shears with the other

First Known Use of bulk up

1979

Learn More about bulk up

  1. See words that rhyme with bulk up

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Examples: bulk up in a Sentence