hike up

verb3

1. •
   To lift; to tug or pull upwards.

   • He hiked up his sagging trousers.
2. •
   To move upwards; to ride up.

   • He was wearing a maroon cashmere muffler which had hiked up on his neck, giving him next to no protection against the cold. — 1955
3. •
   To raise or increase sharply; to hike.

   • They tried to make more money by putting lots of salt in the popcorn and hiking up the price of drinks.