Green’s Dictionary of Slang

bearded adj.

Referring to pubic hair

In compounds

bearded lady (n.) (also bearded taco) [joc. use of SE]

the vagina.

1966

Trimble 5000 Adult Sex Words and Phrases.

bearded oyster (n.) [oyster n. (1a)]

the vagina.

1916–22

Cary Sexual Vocab. I (t/s) n.p.: Bearded oyster. A woman’s pudendum.