Ejaculhation 

When you ejaculate on your girlfriend who takes the piss out of you on a daily basis.

Man 1: Dude, how was your night with your girlfriend?
Man 2: I absolutely hated her, so I did quite a lot of ejaculhation.

Ejaculhation by BananaReef145 August 8, 2019

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

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

Synchronized Ejaculation

A truly epic achievement which can be accomplished when masturbating to a familiar pornographic scene. The masturbater achieves synchronized ejaculation when he ejaculates at the same time as the man (or men) in the video. This cannot be accomplished with lesbian or all-girl porn.

Joe achieved synchronized ejaculation and then high-fived everyone he knew with the hand that wasn't covered in ejaculant.

Synchronized Ejaculation by Anonukeleletroll714 April 20, 2010