To feed up somebody or something (or feed somebody or something up) is to give a lot of food to a person or animal in order to make them stronger and more healthy, or less thin.
Informal British English.
Examples of use:
1. We had to feed our kitten up to make her strong again after she was ill.
2. You look so thin and pale. You need feeding up.
3. He lost a lot of weight in hospital so we’re feeding him up.
4. My mother gives me massive meals when I’m home from university because she thinks I need feeding up!
5. Her parents fed her up after her long illness.
||feed up and feeds up|
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