“Cleaning up someone else's mess” in Japanese
Short answer
Cleaning up someone else's mess in Japanese is “尻拭い” (shirinugui). Full meaning: cleaning up someone else's mess, making up for someone else's mistake; ass-wiping, arse-wiping.
Other ways to say “Cleaning up someone else's mess” in Japanese
しりぬぐい
shirinugui cleaning up someone else's mess, making up for someone else's mistake; ass-wiping, arse-wiping
シリヌグイ
shirinugui cleaning up someone else's mess, making up for someone else's mistake; ass-wiping, arse-wiping
尻ぬぐい
shirinugui cleaning up someone else's mess, making up for someone else's mistake; ass-wiping, arse-wiping
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