expression, godan verb (-ru)
act pedantic; put on scholarly airs
Describes someone who pretends to be more knowledgeable or intellectual than they really are, often in an annoying way.
彼はいつも学者ぶって難しい言葉を使う。
He always acts like a scholar and uses difficult words.
学者ぶるのはやめて、普通に話
Stop being pedantic and just talk normally.