Perdeu o cu na minha cara?
''perdeu o cu na minha cara?'' means ''did you lost your asshole in my face?''. It's used when someone is staring at you for a big ass time.
Person 1: *staring at Person 2*
Person 2: What are you looking at? Perdeu o cu na minha cara?
Person 2: What are you looking at? Perdeu o cu na minha cara?