Definition of "snook"

A freshwater and marine fish of the family Centropomidae in the order Perciformes.

1. Centropomus undecimalis (common snook).  examples

Any of various other ray-finned fishes in several families.  examples

To fish for snook.  examples

(UK, derogatory, as a gesture) A disrespectful gesture, performed by placing the tip of a thumb on one's nose with the fingers spread, and typically while wiggling the fingers back and forth.  examples

(obsolete) To sniff out.

(obsolete) To lurk; to lie in ambush.