The hugely erotic genital bulge found in the female of the species.

See also beetle-bonnet and fanny-clam
"Get those kex of and let me stroke the monkey's chin."
by Marko The Great August 26, 2004
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Monkey Chin is the most amazing girl you will ever meet. She never fails to give her best to everyone around her, from her elderly friends to her family. With her purest heart, she serves the community and brings out the best in people. Her soft, bubbly voice warms your soul even in the darkest nights as her big beautiful eyes shower you with love and utmost attention. Not to forget, the laughter she brings to the world with her goofy self. She is always quick with a stupid joke or a prank, all while having the cheekiest smile on her face.

Most of all, you know she's always there for you. :)
Monkey Chin double chin, when life is not easy, just be sleazy!
by Saint Semaht July 10, 2021
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Damn boy! You better hope you don't get the clap from petting that ho's monkey chin!
by R to the YAN January 10, 2007
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