1. Used to describe someone or something (or group of things or people) that are unlikeable, ugly or just plain stupid.
2. Used to describe someones traits/appearance (mostly to insult them).
3. Used to address someone or a group of people.
-nb. It is common to refer to mates as feet or feetos, this is not used as an insult
2. Check out his sunnies, they are so feeto (meaning they suck).
3a). Hey feet whats up? (like saying "hey dude whats up?")
3b). Hey feetos how u guys been? ("hey dudes how u guys been?")