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にけつどうじそうにゅう
Meanings
Noun
Vulgar
1. double penetration
Alt. forms
二に穴けつ同どう時じ挿そう入にゅう
にけつどうじそうにゅう
Composed of
two holes; toilet with separate chambers for urine and faeces
simultaneous; concurrent; same time; synchronous; together
insertion; incorporation; infixing