Ignoring with スルー
俗に、受け流すこと。何もしないで待っていること。
Commonly, to evade. To wait without doing anything.
Goo Dictionary
スリー comes from “through”. It means to evade a topic or question. It also means to ignore.
As a verb, it is written スルーする.
Examples
ひとりぼっちの○○生活 » Volume 1 » Page 67