Arsy-Varsy

arsy-varsy (AR-see VAR-see) adjective, adverb

Upside-down, backward, preposterous.

[A facetious rhyming compound of arse (a variant or ass); perhaps
coined after vice versa, from Latin versus, from vertere (to turn).]

-Anu Garg (garg wordsmith.org)

"The sense of things being arsy-varsy persists at this first make-up
session."
Simon Callow; Shooting the Actor; Picador; 2003.