ガチムチ/がちむち. A Japanese
term that
literally means "muscular chubby," which refers to
big, bulky body types that are very muscular, but also have a good amount of fat.
Jiraiya, Go Fujimoto, and Ebisubashi Seizoh are just
a few of the many
bara manga artists who specialize in gachimuchi characters.
Many offseason bodybuilders tend to have gachimuchi body types.