Top definition
If someone has traces of sperm still in the mouth after the bj is over, they are said to have "live floss". This term came about after a skank we know had magnified pictures of cracks in her teeth taken at the dentist office, and some stray tadpoles showed up in the pictures.
Don't kiss Betty, she just blew Bill and now she has live floss.
by Billy Bob Joe Mamma April 25, 2008
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