bulk up

verb
|Updated on: 6 Aug 2018

Definition of bulk up

: to gain weight especially by becoming more muscular
: to cause to bulk up

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

Recent Examples of bulk up from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'bulk up.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of bulk up

1979

in the meaning defined at intransitive sense

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