bulk up

verb

bulked up; bulking up; bulks up

intransitive verb

: to gain weight especially by becoming more muscular

transitive verb

: to cause to bulk up

Examples of bulk up in a Sentence

she bulked up her hair with one hand as she reached for the shears with the other
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
This is not like having to bulk up to beat the Bad Boys Detroit Pistons. Ira Winderman, Sun Sentinel, 30 May 2026 Extreme bulks up the graphics processing power with the B390, containing 12 Xe cores. Michael Kan, PC Magazine, 28 May 2026 Insoluble fiber bulks up stool, making bowel movements easier to pass, because this fiber does not dissolve in water. Amber J. Tresca, Verywell Health, 25 May 2026 At 6 feet and198 pounds, one of the few concerns for the A’s organization is his size, something many young players have to bulk up on in the minor leagues. Sean Campbell, Sacbee.com, 23 May 2026 See All Example Sentences for bulk up

Word History

First Known Use

1979, in the meaning defined at intransitive sense

Time Traveler
The first known use of bulk up was in 1979

Browse Nearby Words

Cite this Entry

“Bulk up.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bulk%20up. Accessed 4 Jun. 2026.

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