Any establishment in which music is played and dancing is likely to occur, such as a bar, nightclub, or strip joint.
The word 'Dancerie' is often used in conjunction with hateration or holleration. Each of these three words were introduced by Mary J. Blige in the song Family Affair.
Popular lexicon extends the word's usage to include general locations not necessarily associated with dancing, such as your home, work, or favorite hangout.
Danceline is a club at Elmira College, in Elmira NY. It is a dance club where most of the audience believe we look better than the cheerleaders, wearing more clothes.