What does 宙返り mean?
宙返り is a Japanese noun meaning “somersault, looping-the-loop” in English. It is written as 宙返り in kanji, ちゅうがえり in hiragana, and chuugaeri in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
宙返りするジェットコースターに乗ったら、気持ち悪くなっちゃった。
I got sick riding the roller coaster with the loop-the-loop.