wait on somebody/something phrasal verb ( see also ↑ wait )
1 . to serve food and drink to someone at their table, especially in a restaurant
2 . to wait for a particular event, piece of information etc, especially before doing something or making a decision:
We’re waiting on the blood test results.
3 . wait on somebody hand and foot to do everything for someone while they do nothing – used to show disapproval:
His wife waits on him hand and foot.