The coloquial term for the city of Rotorua located in the North Island of New Zealand. It's know for its geo-thermal activity and as a result stinks like rotten eggs. It also has lots of blatantly commercial 'authentic' Maori experiences, like KFC.
Person 1 - Where you of to for the weekend?
Person 2 - Rotovegas! Ye-ah!
Person 1 - Be sure to take some air-freshner, man 'cause that place stinks like rotten eggs!