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3.
Blocking the arrousal process
"Charlie, tell your mum to put some clothes on...she's such a Jizz Kill"
by Jizzmaster5000 December 11, 2008
 
1.
The emotional and physical feelings of post-sex. After having an orgasm, the Jizz Kill consists of feeling unattached to one's partner. In some cases, a multitude of factors after having an orgasm during sex includes the following:
1. The uncomfortable and intense feeling of the nerves on the head of one's penis.
2. The feeling of regret towards one's partner.
3. The feeling of despair.
4. One may feel the desire for solitary.
Person 1- "Dude, did you fuck her?"

Person 2- "Ah.....yeah man. she was a fuckin jizz kill.

Person 1- "Ah fuck that fuckin sucks.lol. I hate it when that shit happens"

Person 2- ".....yeah...."
by Tuk Toi April 19, 2009
 
2.
The feeling after sex, usually right after you cum. The feelings of jizz-kill include: regret, self-esteem issues, awkwardness. Also jizz-kill explains why you aren't attracted to the person anymore after sex.
Bill- Hey how was Sheena the other night?
Matt- Not to good. The jizz-kill was pretty bad. As soon as we got done having sex, I almost cried.
by yeha_brother August 12, 2008