pack the pounds on
pack the pounds on
To put on weight quickly, either from fat or from muscle mass. Wow, Jim really packed the pounds on while he was on his sabbatical. The coach said I'll need to pack the pounds on if I want to make it on the football team this fall, so I've been hitting the weight room every day after school.
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.