sexy mouth Share definition Flag A person with a mouth that is sexually attractive. A man or woman that is known for being skilled in giving oral sex. Man Jeff sure gets around a lot. I know, Clint told me that it's because he has a sexy mouth. sexy mouth by dontdoitagain October 18, 2013 0 0 Get merch Get the sexy mouth mug. Buy Now — $32.95 See more merch