white-on-white

Adjective

not-comparable uncommon

(uncommon) Taking place between white people.

Japanese Meaning

（稀な表現）白人同士の間で行われる事柄、または現象

The conference was criticized for its white-on-white panel lineup, which ignored the perspectives of people of color.

その会議はパネリストが白人だけで構成されているとして批判され、有色人種の視点を無視していた。

Sense（1）

(uncommon) Taking place between white people.