- Onomatopoeia, imitating repeated breaths. Coined in Taiwan, originally meaning any laborious work.
- (slang) to have sex; to get it on; to go at it
- 2006: Yangzi Evening news editorial staff, 做爱时你们到底在想谁 (Who are you really thinking about when you make love?) 女人在街上看到帅哥，她们什么也不说，然后晚上和男朋友或老公嘿咻的时候就想到那个帅哥。 (simp.) 女人在街上看到帥哥，她們什麼也不說，然後晚上和男朋友或老公嘿咻的時候就想到那個帥哥。 (trad.) A woman will see a hot guy on the street, not even exchange words, but will think about him later on that evening when she is getting it on with her boyfriend or husband.