noun, plural ( especially collectively ) snook ( especially referring to two or more kinds or species ) snooks.
1.
any basslike fish of the genus Centropomus, especially C. undecimalis, inhabiting waters off Florida and the West Indies and south to Brazil, valued as food and game.
any of several large game fishes of the genus Centropomus, esp C. undecimalis of tropical American marine and fresh waters: family Centropomidae (robalos)
2.
(Austral) the sea pike Australuzza novaehollandiae
[C17: from Dutch snoek pike]
snook2 (snuːk)
—n
(Brit) cock a snook
a. to make a rude gesture by putting one thumb to the nose with the fingers of the hand outstretched
b. to show contempt by being insulting or offensive