louse up

verb2

1. •
   (informal) To mess up; to confuse; to put into a state of disorder.

   • To be loused up by Humbolt was really a kind of privilege. It was like being the subject of a two-nosed portrait by Picasso, or an eviscerated chicken by Soutine. — 1976
2. •
   (US, informal) To mistreat (someone).