fit somebody/something ↔ up phrasal verb British English ( see also ↑ fit )
1 . to provide a place with the furniture or equipment that it needs SYN fit somebody/something ↔ out
fit somebody/something ↔ up with
The rooms are now fitted up with electric lights.
2 . informal to make someone seem guilty of a crime when they are really not guilty:
I knew that I had been fitted up.