bulk up

verb

bulked up; bulking up; bulks up
Synonyms of bulk upnext

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.
Regular Pilates is often rehabilitation-focused, while Lagree was designed for muscle tightening and toning without bulking up. Hanna Wickes, Sacbee.com, 29 June 2026 Jordan bulked up that offseason, and coach Phil Jackson installed the triangle offense. Paul Sullivan, Chicago Tribune, 28 June 2026 Your orchid will use the season’s long days to settle in and bulk up. Leanne Potts, Better Homes & Gardens, 27 June 2026 Now another merger aims to bulk up the below-the-line firm. Erik Hayden, HollywoodReporter, 23 June 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 5 Jul. 2026.

Love words? Need even more definitions?

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

More from Merriam-Webster