Definition of "snook" []

• Any of several chiefly marine percoid fishes of the family Centropomidae, especially Centropomus undecimalis, a food and game fish of warm Atlantic waters. Also called sergeant fish. (noun)
• A gesture of derision or defiance. (noun)
• Snook Chiefly British To thumb one's nose: "[The clock] is set wrong and hung crooked, as if to cock a snook at the importance of time” ( Kevin Crossley-Holland). (idiom)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "BoingBoing reader Edward translates, "The phrase 'cocking a snook' is brit for the five-fingered salute (thumb to nose, fingers waggling).""
• "•Already, the FWC has received reports of the loss of large numbers of fish such as snook, bonefish and tarpon, species that are especially reliant on warm water."
• "The ninth frame saw Aditya contend with the referee that Sourav's attempted 'snook' hadn't really released the cue ball but the flash point soon subsided as Aditya later owned up to a foul that was spotted neither by the referee nor his opponent."