An acronym for “Cops Are Class Traitors (in the) United States.” Can also be used in place of A.C.A.B. or used as a substitution for calling police officers “pigs” or “the fuzz,” etc.
1: “Did you hear about the police chief got caught embezzling money?”
“Yeah. C.A.C.T.U.S.”
2: I got stopped by a C.A.C.T.U.S. this morning on my way to work. Asshole wrote me a ticket.