bulk up
In real, traceable use. Part of the curated seed collection; community review is coming.
Sense 1
Where it’s used:
Used
American English
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Sense 2
Meaning · English
To increase the weight of.
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Sense 3
Meaning · English
To train the body with a high-calorie diet and intense weightlifting in order to increase the overall mass of the body, especially the muscles.
Nghĩa · Tiếng Việt
Tập thể dục với chế độ ăn nhiều calo và nâng tạ để tăng khối lượng cơ thể
Machine-translated — suggest a fix
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “bulk up” mean?
To gain weight.
Is “bulk up” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.