YAAAAAAAAY

What the picture shows

A cartoon character with brown hair styled in twin braids and cat-ear-like buns, wearing round glasses and a yellow cardigan, has huge wide eyes and a gaping open mouth with arms raised outward against a light blue background. Chatters would use this to express exaggerated excitement, screaming joy, or over-the-top hype.

No measured meaning yet. Used 189 times in 8 channels this month; one is written once chat gives enough evidence.