What is another word for pack on?
Pronunciation: [pˈak ˈɒn] (IPA) 
The phrase "pack on" generally means to gain weight or muscle mass. There are several synonyms for this term, including bulk up, put on, pile on, increase, and add. "Bulk up" suggests adding muscle to the body through weightlifting or other exercises. "Put on" and "pile on" both refer to gaining weight, but they carry different connotations. "Put on" can suggest intentional weight gain, whereas "pile on" can suggest rapid, unplanned weight gain. "Increase" is a neutral term that can refer to any type of growth or expansion, including weight or muscle gain. "Add" is another neutral term that can imply intentional or unintentional weight or muscle gain.
