What is another word for gypsy rehearsals?
Pronunciation: [d͡ʒˈɪpsi ɹɪhˈɜːsə͡lz] (IPA) 
There are a variety of ways to say "gypsy rehearsals" without using the potentially offensive term. One option is to simply refer to them as "rehearsals." Another alternative is to use more specific language - depending on the context, you could call them "folk dance rehearsals," "traditional music rehearsals," or "Romani music rehearsals." If you want to emphasize the improvisational or free-spirited nature of the rehearsals, you could use terms like "jam sessions" or "open rehearsals." Ultimately, the most important thing is to respect the cultural and ethnic background of the people involved and choose your words carefully.
