small talk, casual conversation
トムは電話をかけてくる度に長々と世間話をする。
Every time Tom calls, he goes on and on about nothing in particular.
世間話をしなくてもいいからね。
You don't have to make small talk, okay?
世間話だ・・
It’s just small talk.
— 預言者 (2009)
おじいさんたち、あの曲がり角に集まっては世間話をするのが好きなのよ。
Those old men like to gather around that corner and chat about what's going on in the neighborhood.