ㄨㄤˋwàngㄧㄢˊyánㄨㄤˋwàngㄊㄧㄥtīng

  1. 隨便隨便莊子·齊物論》:妄言。」比喻真實·袁枚不語·〉:文史自娛妄言妄聽。」

unwarranted talk the listener can take or leave (idiom)​; sth not to be taken too seriously