get up
get up {v.}
1. To get out of bed.
John's mother told him that it was time to get up.
2. To stand up; get to your feet.
A man should get up when a woman comes into the room.
3. To prepare; get ready.
Mary got up a picnic for her visitor.
The students got up a special number of the newspaper to celebrate the school's 50th birthday.
4. To dress up.
One of the girls got herself up as a witch for the Halloween party.
5. To go ahead.
The wagon driver shouted, "Get up!" to his horses.
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Source: A Dictionary of American Idioms