Croaker

Pronunciation: -?r
n.

1. One who croaks, murmurs, grumbles, or complains unreasonably; one who habitually forebodes evil.
1. A small American fish (Micropogon undulatus), of the Atlantic coast.
2. An American fresh-water fish (Aplodinotus grunniens); -- called also drum.
3. The surf fish of California.

When caught these fishes make a croaking sound; whence the name, which is often corrupted into crocus.