The act of performing oral sex on a woman who is menstruating. The blood on the mouth of the person doing it looks like a big red clown mouth.
by A. Walton September 27, 2005
The clown smile occurrs as a male ejaculates on their partner and sucks the man-fluid through a straw and then releases it on the parther's face from ear to ear to appear like the smile of a clown
After jizzing on that girls tits, i had her friend suck it thru a straw and draw a clown smile on her face.
by j-money April 20, 2004