penis fencing

English

Noun

penis fencing (uncountable)

  1. A mating behaviour in many species of flatworm, such as Pseudobiceros hancockanus, in which each creature attempts to pierce the other's epidermis with an extendable stylet and thus inseminate it.
This article is issued from Wiktionary. The text is available under Creative Commons Attribution-Share Alike 4.0 unless otherwise noted. Additional terms may apply for the media files.