Y-shaped coffin

Etymology
Suggesting that the deceased's legs were continually open for sexual intercourse.

Noun

 * 1)  An imaginary coffin in the shape of a capital letter Y, supposedly used for burying a sexually promiscuous woman.
 * 2) * 1986,  (TV series episode)
 * Edmund: This is the Jane Herrington? Percy: Yes. Edmund: Jane - bury-me-in-a-Y-shaped-coffin - Herrington. Percy: I.., I think maybe there are two Jane Herringtons. Edmund: No... Tall, blond, elegant? Percy: Right, that's right. Edmund: Goes like a privy door when the plague is in town?