Definition of petite mort in US English:

petite mort

noun

  • The brief loss or weakening of consciousness. Now: specifically the sensation of orgasm as likened to death; an orgasm. Compare little death.

Origin

Late 19th century; earliest use found in Thomas Hardy (1840–1928), novelist and poet. From French petite mort fainting fit, nervous spasm, orgasm from petite, feminine of petit + mort death.

Pronunciation

petite mort

/pəˌtiːt ˈmɔː/