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.
What to Consider While super-slim when empty, this wallet bulks up when fully loaded. Alesandra Dubin, Travel + Leisure, 2 May 2025 Lilly has been bulking up its production capacity since 2020, investing more than $17 billion into developing new plants and expanding existing facilities for the weight-loss and diabetes drugs that are expected to become some of the best-selling medicines of all time. Jeff Marks, CNBC, 1 May 2025 The Sky bulked up their roster with perimeter shooters and facilitators who can space the floor and increase the team’s 3-point volume. Julia Poe, Chicago Tribune, 28 Apr. 2025 Boiled eggs add flavor, bulk up the dish, and can even add extra texture and fluffiness to an otherwise-dense dish. Patricia Shannon, Southern Living, 27 Apr. 2025 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 25 May. 2025.

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!