Noun: to describe a child that is defiant towards authority; usually in a situation that the child is aware of a rule but continues to be negligent or "forgetful".
In expletive form: to release, and or solidify frustration of children fitting the description of a squid.

Squid. Cambridge Massachusetts term to describe a person with expert knowledge often in a esoteric or obscure subject. The term originated in Los Angels as a name for a show off and reckless motorcyclist but appeared to develop independently to mean a person whose vast knowledge may not be fully appreciated by the general public. The term is believed to have traveled to New England via graduate students from southern California. Squid (verb) to become absorbed in an activity. Squid out. Squidger the circular disk used to propel disks in the game of Twidlywinks.

A person who responds to anonymous sex/casual hookup ads posted on-line. Can be used in a general sense to describe people of either sex seeking either gay or straight sex, but is more commonly used to refer to older gay men responding to ads posted by younger men, whether or not they expect some kind of compensation.

A person who posts such an ad is said to be "trawling for squid."

A prison inmate that as been there for a long period of time but still doesn't know the whole jail system and is completely useless

A new kid in a group, or generally someone new in an established group of people. Comes from Rocket Power on Nickelodeon.

A man or boy that thinks there the best but are really arent. Or try to out drink everyone but cant and pass out before the rest. Thus being a squid trying to be the best.

squid or squidy is a term used to describe a person or thing which is being overly unpleasant or needlessly difficult