68

Origin

(Sex): By analogy with 69, a mutual oral sex position.
(Food): An antonym of 86 ("to temporarily remove an item from the menu") via a reversal of the numbers.

Full definition of 68

Noun

68

(plural 68s)

(sexology, slang, uncommon) A sex position in which one partner lays on top of the other, with their genitalia facing the other partner's head, in order for said partner to perform oral sex.

Verb

(sexology, slang, uncommon) To have sex in the 68 position.
(informal, transitive, food, rare) To put an item back on the menu.