What is the meaning of Skinny?

Thin, generally in a negative sense (as opposed to slim, which is thin in a positive sense).

Of food or a beverage, having reduced fat or calories.

Naked; nude (chiefly used in the phrase skinny dipping).

Tight-fitting.

Synonym of thin (“type of shot where the ball is struck by the bottom part of the club head”).

The details or facts; especially, those obtained by gossip or rumor.

A state of nakedness; nudity.

A low-fat serving of coffee.

A skinny being.

An obstacle for a horse to jump over, consisting of a narrow fence.

To reduce or cut down.

Source: wiktionary.org