Japanese

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Kanji in this term
せい
Grade: 5
いん
Grade: 3
on'yomi
Alternative spelling
精飮 (kyūjitai)

Etymology

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Compound of (sei, semen) +‎ (in, swallowing)

Noun

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(せい)(いん) (seiin

  1. (sex) sexual act that involves a person's ingestion of semen from one or multiple partners.

See also

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