やぼ· also ヤボ
boorish; unsophisticated; unrefined; uncouth
Common word
Na-adjective, Noun
野暮やぼ用ようがあるんだ。
I have a few errands.
・・・言いいたいことは色々いろいろあるのだが、ここで口くちを挟はさむのは野暮やぼというもの。
There are things I'd like to say but to butt in now would be what they call uncouth.