Urusai Yamaguchi means "I love you Yamaguchi" in Tsukishima language.

Tsukishima is hella sus for Yamaguchi and made this phrase up himself. Just so Yamaguchi doesn't know.
Tsukishima: Urusai Yamaguchi
Yamaguchi: Gomen Tsukki!
by Tsukishima 😩 February 23, 2021
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This is how tsukishima kei from haikyuu tells his best friend to shut up, nothing more and nothing less. Please.
Tsukishima mad

Yamaguchi saying something

"urusai Yamaguchi "-Tsukishima

"Gomen tsukki!"-Yamaguchi
by Keisdinoplushie._ October 18, 2021
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