俗ぞくに言いう

expression, noun-modifying (irregular)

so-called; what is commonly called

Fixed prenominal phrase used to introduce a colloquial or popular name for something. Often followed by a noun.

• 俗ぞくに言いう「スマホ依い存ぞん症しょう」は、正せい式しきな病びょう名めいではない。

  What is commonly called 'smartphone addiction' is not an official medical term.

• あの地ち域いきでは、俗ぞくに言いう「お化ばけ屋や敷しき」が観かん光こう名めい所しょになっている。

  In that area, what is popularly known as a 'haunted house' has become a tourist attraction.