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2.
That euphoric feeling directly after having an orgasm. After orgasm, both men and women release the chemicals oxytocin, prolactin, gamma amino butyric acid (GABA), and endorphins that work to tell the body and mind to relax after sex.
We were just laying there enjoying the postcoital bliss and he said "I love you". And I said, "just enjoy the afterglow and don't get all sappy".
by Kate Charlton February 15, 2008
 
1.
That euphoric feeling directly after having an orgasm. After orgasm, both men and women release the chemicals oxytocin, prolactin, gamma amino butyric acid (GABA), and endorphins that work to tell the body and mind to relax after sex.
We were just laying there enjoying the postcoital bliss and he said "I love you". And I said, "just enjoy the afterglow and don't get all sappy".
by Kate Charlton February 15, 2008
 
3.
Fancy/Nixxi way of saying orgasm :)
Nixxi: I hope you enjoyed your morning post coital bliss my love :)
by R.A.K.A September 29, 2011