副詞と副詞サ変名詞
opening and closing (esp. of vulva or anus); pulsing
擬音語・擬態語俗語卑語
参照: くぱぁ
性行為の際、女性器がくぱくぱと開閉する。
- During sexual intercourse, the female genitalia opens and closes repeatedly.
下痢がひどく、肛門がくぱくぱと痙攣した。
- I had severe diarrhea, and my anus was twitching from spasms.