Amnesia: The condition that enables a woman who has gone through labor to have sex again.

Framed as a mock dictionary definition, the line uses dark humor to comment on the intensity of childbirth and the psychological distance many people develop from extreme pain over time. By calling that forgetting “amnesia,” the joke suggests that memory’s softening (or suppression) of traumatic experience is what makes intimacy after labor conceivable. The quip also plays on cultural taboos around discussing postpartum bodies and sexuality, compressing a complex reality—recovery, desire, partnership, and social expectations—into a single, provocative punchline. Its comedic force comes from the abrupt collision of clinical language with blunt sexual candor.