old hat

noun

Meaning

Something with which one is very familiar; something very common, hackneyed or out of date.
The vulva; (by extension) sexual intercourse.

Synonyms

coitus,

horizontal mambo,

rumpy-pumpy,

banality,

cliché,

commonplace,

exotery,

fossil,

platitude,

coochie,

ladybits,

quim