When one gets a girl off with their chin, giving a girl an orgasm with the use of your chin.
See also, Hairy Platypus
See also, Hairy Platypus
After the date, I took the girl back to my place and gave her a duck-billed platypus, and she liked it.
by platCHypus November 23, 2009
Get the Duck-Billed Platypus mug.when a woman is laying on her side on a bed , with her ass hanging off and grabbing her ankles. The guy come from behind and puts his hands around her head in the praying position(the duck bill) and gives swift abdominal thrusts
by emoney June 19, 2004
Get the duck billed platipus mug.