Chalezinho is a night club where most of the young people (18-29 yo, depends of the day) go on the weekend. For me it's the best place to meet new interesting people and dance all night long. You probably will hear a lot of funk (Brazilian music)
It's the best club at Belo Horizonte, so you will find a lot of interesting people there. All drinks there are quite good (try Floripa Louco, it's amazing) and also the music is great. Food is not that good, so you should eat before or after party.
The hot dog just at the corner is delicious
Th-Sa: 22:00-05:00