mongrel

1. (often derogatory) Someone or something of mixed kind or uncertain origin, especially a dog.Examples: "That dog is a mongrel; who knows what breed it could be!"; "America is an improbable idea. A mongrel nation built of ever-changing disparate parts, it is held together by a notion, the notion that all men are created equal, though everyone knows that most men consider themselves better than someone."Synonyms: bitsa, bitser, bitzer, cur, mutt, tyke, Heinz 57derogatoryoften

2. (often derogatory) Someone or something of mixed kind or uncertain origin, especially a dog.Synonyms: bitsa, bitser, bitzer, cur, mutt, tyke, Heinz 57derogatoryethnicoffensiveoftenslur

3. (slang, UK, Ireland, Commonwealth) A thuggish, obnoxious, or contemptible person; (often preceded by "poor") a pitiable person.Examples: ""Yanto bloody Evans!" Jack stuttered with rage. "Yanto bloody Evans! That... that... bloody mongrel! D'you know who he is? He's the one who knocked me back for a bit of extra timber before the roof fell in on me!""; "But somebody's got to tell these mums and dads why their kids died, why this mongrel thinks he can wipe them out like a dirty rag."Synonyms: bastardCommonwealthIrelandUKslang

4. (slang, Australia) An erect penis; an erection.Australiaslang