Hatarakanai Futari - Vol. 10 Ch. 547 - Where Are You Looking At?

[MangaDex]

 

[caitsith]

Great work with the chanko pun, hahaha.

 

[BaGamman]

Ok, so if I get it right, it's a japanese jock where when they are asked where they put their (eye)balls, they respond right near the "chinko", which more or less means "penis" in Japanese.

Makes sense still.