any of various mainly tropical marine sciaenid fishes, such as Umbrina roncador (yellowfin croaker), that utter croaking noises
3.
a grumbling person
croaker in American English
(ˈkroukər)
noun
1.
a person or thing that croaks
2.
any of several sciaenoid fishes that make a croaking noise, esp Micropogonias undulatus (Atlantic croaker), found off the Atlantic coast of the southern U.S.
3.
a person who grumbles or forebodes evil
4. slang
a doctor
Word origin
[1630–40; croak + -er1]
Examples of 'croaker' in a sentence
croaker
'Put it this way, the croaker 's a winter fish down them parts.
Mark Mills AMAGANSETT (2004)
He didn't know what a croaker was, but he got the general impression.
Mark Mills AMAGANSETT (2004)
The elderly croaker turned, as he left me alone with the voice.