dog’s meat n.
1. [late 16C–19C; 2000s] anything considered worthless, e.g. a badly written book, a poorly executed painting etc; also a despicable person; also as adj.
2. [1960s+] (S.Afr.) domestic workers, lit. cheap cuts of meat which are cooked for the servants’ meals.
3. in fig. use, a dead person, a person in serious trouble.