MONGREL
cur, mongrel, mutt
(noun) an inferior dog or one of mixed breed
bastard, mongrel
(noun) derogatory term for a variation that is not genuine; something irregular or inferior or of dubious origin; “the architecture was a kind of bastard suggesting Gothic but not true Gothic”
Source: WordNet® 3.1
Etymology
Noun
mongrel (plural mongrels)
(often, pejorative) Someone or something of mixed kind or uncertain origin, especially a dog.
Synonyms: bitsa, bitser, bitzer (UK, Australia, New Zealand), cur, mutt, tyke (dialectal), Heinz 57
Hyponym: moggy (of a cat)
(slang, Australia, New Zealand) A thuggish, obnoxious, or contemptible person; (often, preceded by "poor") a pitiable person.
Synonym: bastard
Source: Wiktionary
Mon"grel, n. Etym: [Prob. shortened fr. mongrel, and akin to AS.
mengan to mix, and E. mingle. See Mingle.]
Definition: The progeny resulting from a cross between two breeds, as of
domestic animals; anything of mixed breed. Drayton.
Mon"grel, a.
1. (Zoöl.)
Definition: Not of a pure breed.
2. Of mixed kinds; as, mongrel language.
Source: Webster’s Unabridged Dictionary 1913 Edition