Ejacelation 

To be so elated by a perceived favourable outcome in an event, no matter how mediocre, that one proceeds to ejaculate without warning in one's pants, regardless of the social situation.

Dentist: 'You were well behaved at your appointment today David, so here's a sticker'
David: (jizzes in pants)
Dentist: 'Ejacelation?'
David: 'Nope, prostate cancer.'

Ejacelation by Anonymous submissions January 27, 2017

Ejaculation salt

The Korean name for Incineroar, a wrestling Pokemon and also the 69th unique fighter in Super Smash Bros Ultimate.

Ejaculation salt has the best final smash in Super Smash Bros Ultimate.

Ejaculation salt by Doosin January 20, 2019

Mental Ejaculation of Joy 

When your mind and body becomes so overwhelmed with such ecstatic joy while delivering the father of the groom speech that you yell out at the end "I'm having a mental ejaculation of joy" and then drop the mic.

Aka Poe.

This wedding makes me so happy It's a mental ejaculation of joy

Mental Ejaculation of Joy by S.Poe April 24, 2017

Ejac-elation

The instantaneous and short-lived feeling of unbridled joy which accompanies ejaculation.

Guy 1: Mate you look delighted, what's the good news?
Guy 2: It won't last bro, ejac-elation is short but oh so sweet.
Guy 1: Dude, too much info.

Ejac-elation by Freshpot October 15, 2011

post mature ejaculation 

To orgasm after the act of sex has been completed. The opposite of pre-mature ejaculation.

Jack failed to ejaculate during sex with Jill but successfully came afterward while eating a bowl of cereal in a phenomenon known as post mature ejaculation.

post mature ejaculation by brazzee September 5, 2010

Post Ejaculation Thoughts 

A thought or realisation after ejaculation whereby you have, either, random or relevant thoughts due to your mind now thinking clearly without sexual hormones being active.

After sex:
Girl: Hey baby, what you thinking about?
Guy: I was wondering why Woody and Buzz were named after dildos.

Recollection of sex:
Guy 1: Did you have Post Ejaculation Thoughts?
Guy 2: Yeah, I realised I didn't want to be with her.

Post Ejaculation Thoughts by Branwell Jäger November 23, 2013

First Ejaculation 

The one orgasm you spend your entire life trying to get back.

Damn I remember my first ejaculation it was so intense I almost passed out.

First Ejaculation by Fuckingshitassbuttsexhairyass November 29, 2016