While performing {fellatio}, your partner ejaculates in your mouth and his semen tastes so bad that your face puckers up, like if you sucked on a lemon.
Last night I was {going down} on my old man and I don't know what that fool ate, but when he {came}, his {jizz} tasted so rank that I had a Cumpucker for hours!
A woman who has sexual intercourse which concludes with ejaculation on her back side. Usually as a sign of disrespect and/or due to cosmetic defects on the front side of one's body (i.e. the face or breasts), cumbacker is often used as an ironic pun as the male will rarely come back once he is spent.
Sally knew she was a cumbacker when Johnny ejaculated onto her back and left without saying good-bye.
When a man has sex with a woman and cums on ther pubic hair and it dries up,then the next person comes along and wants to eat her out and eats the dried up cum on her pubic hair.
One who habitually packs crap(poo) in his or her butt forcefully and then walks about in public spaces. It is important to note that the origin of said crap(poo) is generally of a specific species of muskrat that has a particularly bitter taste.
He is one of damn crappackers. That is why he walks like one of his legs is longer than the other and appears to achieve orgasm every quarter mile or so.