What is Poo Manchu?
1.
To draw a fecal moustache on your partner using your finger or penis after having anal sex.
Alternate definition, see
Although she wasn't Asian or male, Darlene sure looked the part after her lover gave her a Poo Manchu.
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2.
A fecal moustache, applied with the penis or finger following anal coitus, resembling the Fu Manchu moustache of Sino-origin
Dude, I gave that bitch a poo manchu last night.
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3.
when a woman has a bearded asshole strongly resembling the mustache and goatee of a chinese wiseman.
yo I was just about to eat her asshole when I was stared in the face by her poo manchu
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