bad-jacket verb1 •To create suspicion around (a person) through the spreading of rumors, manufacture of evidence and disinformation, etc.The F.B.I. then launched a COINTELPRO to bad-jacket him as a police informer, which led to Pratt's expulsion from the BPP in August 1970. — 2004 formsbad-jacketed · bad-jacketing · bad-jackets