Meaning of "Get Serious"

the practice of strengthening and enlarging the muscles of the body through exercise.

bod·y·build·ing

bŏd′ē-bĭl′dĭng

bodybuilding

(bŏd 'Ē-bĭl'dĭng )
n.
The process of developing the body's musculature through specific types of diet and physical exercise, such as lifting weights, especially for competitive exhibitions.

bod'yBuild'er n.

bodybuilding

ˈbɒdɪˌbɪldɪŋ

bodybuilding

( bɒdɪˌbɪldɪŋ )
n
(Weightlifting) the practice of performing regular exercises designed to make the muscles of the body evident

bod′y•build`ing

bod'y • build`ing

or bod'y-build`ing,

n n n.
the development of the muscles and the physique through exercise, weight training, etc.
[1900-05]
bod'y • build`er, bod'y-build`er, n.