一言居士

いちげんこじ

person who is ready to comment on every subject; ready critic

noun

Example sentences

また、お説教（せっきょう）が始（はじ）まった。一言居士（いちげんこじ）の面目躍如（めんもくやくじょ）というところだね。

Uh-oh, here comes another lecture. This guy likes to show he has something to say about everything.