2 definitions by w00tn4nn135

Hair on the derriere, or to put it bluntly, ass hair.
That plumber's got a severe case of derrihair.
by w00tn4nn135 February 2, 2008
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Ejaculating into a sexual partner's ass. A true semenema is hallmarked by outrageous amounts of semen, so much so that it actually seeps out of the rectum after withdrawal of the penis
Get ready for your semenema baby!

Doctor's orders are that your wife receive 2-3 semenema's a day, in order to regulate both bowel movements and libido.
by w00tn4nn135 February 26, 2008
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