What is the meaning of Footy?

Football (association football) (soccer in US, Canada, Australia, New Zealand)

The game or sport of football, usually Australian rules football or rugby league, but not soccer.

The ball used in a game of footy.

A short sock.

A football fan. (Can we add an example for this sense?)

Having foots (settlings).

Of bad quality; mean, poor.

Source: wiktionary.org