After oral stimulation with a man or a woman, the pubic hair from the rough oral gets caught in between your teeth making a hairy smile.
"Oh shit Joey! I just got sex floss in my teeth!"
by M. Night Shamalyn April 05, 2010
1 more definition
When you are performing 69 with your fuck friend and each of ya'lls pubic hairs get stuck in between your teeth.
"Oh my gosh Dustin, your sex flossing my teeth again. Oh well at least they will be clean!"
by Cheddars May 21, 2006