what is this? (surprise or indignation
Ôxe, véi! Por que você fez isso?
What the heck, man! Why did you do that?
A blend of ôxe (a contraction of oxente) and véi (old man/dude), expressing astonishment.
Falando's Idiom Trainer teaches you to recognize idiom meanings and create sentences using them, so you can speak like a Brazilian.