do with
do with {v.}
1. To find enough for one's needs; manage. — Usually follows "can".
Some children can do with very little spending money.
2. To make use of; find useful or helpful. — Follows "can" or "could".
After a hard day's work, a man can do with a good, hot meal.
After cleaning out the basement, the boy could do with a bath.
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Source: A Dictionary of American Idioms
