noun
shallow-minded mouthing of secondhand information
A yojijukugo describing someone who uncritically repeats things heard on the street without deep understanding. Often used to criticize superficial knowledge or gossip.
彼の話は道聴塗説に過ぎないから、あまり信用しないほうがいい。
His story is nothing more than shallow hearsay, so you shouldn't put too much stock in it.
ネット上の情報には道聴塗説が多いので、きちんと裏を取る必要がある。
There's a lot of secondhand chatter online, so you need to verify things properly.