Meanings
nounbulk-up (plural bulk-ups)
plural bulk-ups
- bodybuildingThe process of bulking up.
Muscle size (weight gain) program: A bulk-up of three to five sets of 5, gradually increasing to 10 reps at 70 to 80 percent effort […]
2004, Gwen Robbins, Debbie Powers, Sharon Burgess, A Wellness Way of Life (page 167)
Origin
Deverbal from bulk up
Full word history & related roots →Cite this entry
APA
bulk-up. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/bulk-up
MLA
“bulk-up.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/bulk-up. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “bulk-up,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/bulk-up.
Source: bulk-up on Wiktionary, CC BY-SA 4.0.