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An extremely rare, but serious, medical condition. A "Cum Tooter" (or anal-seminal ejaculatory disease Also known as "ASED") is where a man ejaculates from his anus.

Only one out of every 1,265,987 (estimated) men are born with this "gift".
Jenny: Patty told me Mike was a cum tooter!

Chad: No way! I heard that was only a myth!

Jenny: It's for real! I saw it on Myth Busters!
by MattBomb October 11, 2009
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