yaoi (noun) - Japanese erotic anime (cartoons) that focus on male-on-male sexuality.
That doesn't mean yaoi works aren't sexually explicit. Some of them are: very much so, and definitely not for minors. But while the pictures may clearly be intended to represent all the varieties of m/m sex, the crude anatomical details are often glossed over for the sake of aesthetics.
Yoni (noun) Ancient Indian term for the vagina or a representation of the vagina; appears in
the Kama Sutra and often used in reference to TANTRIC
SEX. See also LINGAM.