Definition of "squid"

Any of several carnivorous marine cephalopod mollusks, of the order Teuthida, having a mantle, eight arms, and a pair of tentacles  examples

A fishhook with a piece of bright lead, bone, or other substance fastened on its shank to imitate a squid.  examples

(US, military, slang, mildly derogatory) A sailor in the Navy.

(UK, slang, humorous, rare) A quid; one pound sterling.  quotations

(fishing) To fish with the kind of hook called a squid.  examples

(parachuting) To cause squidding (an improper, partial, parachute inflation, that results in the sides of the parachute folding in on the center, and pulsating back and forth).  examples

(slang, motorcycling, derogatory) A motorcyclist, especially a sport biker, characterized by reckless riding and lack of protective gear.