It’s an informal and childish way to say it in Japanese. Since Kuro sees Shiro as a child he uses that Japanese word. Also not sure why you think it’s weird or gross. It’s literally just a Japanese word.
How is it gross it's literally the same thing as pp bro
It's the same thing as peepee, it's a childish word that grown people can say too girl
It's weird for him to say it cos the car looks like a child, and is acting like one
*cat
the comment you are replying to literally explains why he says chin chin... cuz the dog sees the cat as a child. maybe re-read it???
Idc, it's still weird cos they're obviously gonna fuck
they aren't fucking when he calls it a chin chin?? the recent episode is literally him having a lesson on why he shouldn't be seeing the cat as an innocent kid anymore
Wtf is a chin chin? That's weird and gross, call it a penis or a dick