俗ぞくに

adverb

commonly called; popularly known as; in everyday language

Used to introduce a common or colloquial name for something, often contrasting with a formal or technical term.

• この花はなは俗ぞくに「金きん魚ぎょ草そう」と呼よばれている。

  This flower is commonly called 'snapdragon'.

• 俗ぞくに言いう「三みっ日か坊ぼう主ず」だね。

  It's what people commonly call a 'three-day monk' (someone who gives up quickly).