1) Contemptible 2) Flea-bitten 3) In sorry shape 4) Like a junkyard dog 5) Like a sorry-looking dog 6) Like a stray mutt 7) Like many a mutt 8) Like many a stray dog 9) Like many curs 10) Like some mutts 11) Like some stray mutts 12) Like some strays 13) Mangey 14) Ratty or flea-bitten 15) Run-down and filthy 1) Mangey 2) Worn 
• (superl.) Infected with the mange; scabby.
Man'gy adjective [ Compar. Mangier ; superl. Mangiest .] [ French mangé , past participle of manger to eat. See Manger .] Infected with the mange; scabby. 
[adj] - having many worn or threadbare spots in the nap
mangey adjective having many worn or threadbare spots in the nap; `a mangy carpet`; `a mangy old fur coat`