croaker

1 an irritable and complaining person she becomes a real croaker when she's overtired Synonyms bear, bellyacher, complainer, crab, crank, grouch, crosspatch, curmudgeon, fusser, griper, grouser, growler, grumbler, grump, murmurer, mutterer, sourpuss, whinerRelated Words hunks; malcontent, sorehead; grinch, killjoy, party pooper, spoilsport; defeatist, pessimist; faultfinder, kicker, nagger, nitpicker, objector, quibbler, repiner; crock [slang], hypochondriacNear Antonyms optimist, Pollyanna; happy camper

2 slang  a person specially trained in healing human medical disorders ever more ornery as he grew older, he swore that he didn't need some croaker telling him that smoking was bad for his health Synonyms doctor [slang], doc, medic, medico, physician, sawbones [slang]Related Words family doctor, family physician, family practitioner, general practitioner; anesthesiologist, dermatologist, gynecologist, internist, neurologist, ob-gyn, obstetrician, ophthalmologist, orthopedist, pathologist, pediatrician (also pediatrist), physiatrist, podiatrist, radiologist, urologist; attending, clinician, hospitalist; specialist; plastic surgeon, surgeon; intern (also interne), resident; aidman, nurse, nurse-practitioner; EMT, paramedic (also paramedical); physical therapist, physiotherapistAntonyms nondoctor, nonphysician