Green’s Dictionary of Slang

piece-of-shit adj.

[fig. use of shit n. (1a)]

a general derog. term: disgusting, unattractive, unkempt; also as adj.

[US]N. De Mille Smack Man (1991) 118: The girl who had sold him the goddamn piece-of-shit air conditioner.
[US]E. Torres After Hours 112: He’s trying to reopen that old-piece-of-shit case.
[US]C. Hiaasen Tourist Season (1987) 19: That piece-of-shit rag newspaper you used to work for finally printed something intelligent this morning.
[US](con. 1970s) J. Pistone Donnie Brasco (2006) 282: At least nobody else will get stuck with this piece-of-shit transmitter.
[US]R. Price Clockers 39: Some piece-of-shit number-three man on a homicide.
[US]D.H. Sterry Chicken (2003) 51: If my painintheassbastard husband thinks I’m gonna save his piece-of-shit dinner party, he can kiss my ass.
[US](con. 1973) C. Stella Johnny Porno 45: Go get in your piece-of-shit car and get lost.
[US]C. Black ‘Topless Vampire Bitches’ in C. Rhatigan and N. Bird (eds) Pulp Ink 2 [ebook] hence Harry funding the piece-of-shit film, anything to keep her busy.