louse up

louse up (third-person singular simple present louses up, present participle lousing up, simple past and past participle loused up)

1. (idiomatic, colloquial) To mess up; to confuse; to put into a state of disorder.
   • 1976 September, Saul Bellow, Humboldt’s Gift, New York, N.Y.: Avon Books, →ISBN, page 3:

     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.

   • 1980 April 12, Nancy Walker, “Parents and Friends of Gays”, in Gay Community News, page 12:

     The recent flu epidemic that loused up all my plans to see Pat Bond.

• lousy