Meaning of "Pumping"

Peom-Ping

Pumping펌핑#마인드셋#IT/개발#라이프스타일Ancient Meme

(In exercise) This is the process of increasing blood flow to a specific muscle group to make the muscles appear more defined temporarily, or to make them appear swollen in order to achieve that effect.

"After finishing my warm-up at the gym, doing some pumping made my chest look more defined."