Definitions by Zephyr_

Tiny Koo 

'Tiny Koo', is a nickname given to BTS' youngest member; Jeon Jungkook.
Especially used during the moment when he looks small/tiny in size.

For ex., when he wears oversized clothes.

Tiny koo is my eternal religion.

Tiny Koo by Zephyr_ January 6, 2021