Orgasms or erotic stimulations that occur spontaneously and unexpectedly despite the lover not being in the room or any sexual activity or contact occuring. Aftershock orgasms are inspired mental activity and physiological reactions that come after 'monster thumping sex' and the body is still craving and aching for the lover long after intercourse has occured. Usually the person suffering an 'aftershock' has a boner, a wierd smirky smile for no reason, has a visible cramp, is distracted while driving or working, or may engage in masturbation while crying out his/her lover's name in the middle of the day for no reason. If you get these, ride the waves and keep the lover. Also known as an 'echo orgasm.'
After a romantic night of 'monster thumping sex' my guy and I couldn't see each other for a few days, but I was having aftershock orgasms all the time. So was my guy when he finally confessed over the phone.

She: "I can't stop thinking about you. It's so bad I'm having trouble driving."
He: "I know, these aftershock orgasms are making driving dangerous. HAHA."
She: "My coworkers are thinking I'm losing my mind, and I can't tell them. They'll think I'm a pervert!"
He: "I'm coming over in a few days. I need my next fix."
by Laniidae January 26, 2008
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This can refer to either:

1) The common feeling of a 'shiver' or spasm throughout the body a minute after orgasm/ejaculation, possibly due to the body reacting to the sheer amount of pleasure that was just produced.

2) The manifestation of several 'mini orgasms' after climaxing, commonly expressed through subsided moaning/breathing noises and other vocal responses indicative of pleasure. It is caused by the mind continuously reflecting on the euphoric pleasure that had just occurred, making you moan in response. Depending on the degree of pleasure, such mini orgasms can manifest for up to an hour.

3) Both of the above
1) After Jake received his first blowjob and climaxed, he felt the post-orgasm aftershock within a minute, sending spasms throughout his body. The giver interpreted that as an indicator that he enjoyed it.

2) After teasing his cock for 30 minutes straight, she finally let him cum. The orgasm was so powerful that it sent a post-orgasm aftershock throughout his body. He kept moaning for an hour straight due to the sheer amount of pleasure that was done to his cock.
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