stitch up

To join or close by sewing.
To fabricate (e.g. a legal case).
(Australia, British, slang) To maliciously or dishonestly incriminate someone; to set up (in the sense trap or ensnare)
(Australia, slang) To prank, trick, or deceive (a person), whether or not malice is intended.
(Australia, slang) To complete arrangements for (a situation), especially clandestinely or prematurely and for one's own benefit.