run up something phrasal verb ( see also ↑ run )
1 . run up a debt/bill etc to use so much of something, or borrow so much money, that you owe a lot of money:
She ran up an enormous phone bill.
2 . to achieve a particular score or position in a game or competition:
He quickly ran up a big lead in the polls.
3 . run something ↔ up to make something, especially clothes, very quickly:
She can run up a dress in an evening.
4 . run something ↔ up to raise a flag on a pole