It may not be understood because they are vulgarized words, but also very well-known: 'bailaora' is the feminine of 'bailaor' ("dancer, especially the flamenco dancer") and 'tronío' is for "tronido" ("grace, elegance").
Dancer who knows how to do her job and lifts the audience to see her. Very special woman in dance, renowned. Some synonyms, words or similar expressions may be renown, special