狸の腹鼓、タヌキの腹鼓、狸の腹つづみ
たぬきのはらつづみ
tanukinoharatsudumi
JMdict entry #2869050
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expressions (phrases, clauses, etc.)
go (game)
patting the raccoon's belly (tesuji); tanuki drums his belly
see: 手筋・2