Oasis is a very special place indeed. At any time of day, you can find Brazilian construction workers in mud-splattered clothing, Tufts students in pastels and plaid, cops in uniform and just about anyone who enjoys heaping portions of Brazilian BBQ, called churrasco. There is a buffet on week nights, while at other times your meal is priced by weight. There is limited free parking due to Oasis's popularity, but diners would climb mountains, not to mention wait for a parking place, for these succulent cuts of meat.