mongrels

/M AA1 N G R AH0 L Z/
noun
  1. 1

    Someone or something of mixed kind or uncertain origin, especially a dog.

    โ€œThat dog is a mongrel; who knows what breed it could be!โ€

  2. 2

    A thuggish, obnoxious, or contemptible person; (often preceded by "poor") a pitiable person.

Source: https://en.wiktionary.org/wiki/mongrel, https://en.wiktionary.org/wiki/mongrels