scrub out

verb2

1. •
   To scrub until all uncleanliness has been removed.

   • His grandfather insisted on spotless good order, and the shop had a reputation for cleanliness, one maintained by Frank’s mum, who for years would get down on her knees and scrub out. — 2020
2. •
   To leave a surgical operating theater where one has previously scrubbed in.

   • 17 May 2012, New Scientist, New device lets surgeons check medical images during an operation without having to scrub out.