freeloader, moocher
Esse aí é boca de me dê, vive pedindo cigarro pros outros.
That guy's a mooch — always asking others for cigarettes.
A transparent Northeastern coinage: boca de me dê = 'a "give-me" mouth' — a person whose every interaction is a request for something.
Falando's Idiom Trainer teaches you to recognize idiom meanings and create sentences using them, so you can speak like a Brazilian.
