Cumcussion 

It's after you come inside your significant other (any way is acceptable), and then soon after punch them in the back of the head, rendering them unconscious.

"Hey Chris, did you hear that Reid cumcussed Catherine and is now serving 3-8 for domestic violence!"
"I suffered a cumcussion last night and I don't remember who I fucked"

Cumcussion by TheMistreatedBallsack69 January 2, 2017

Cumcussion 

When you cum so hard in someone’s nose that it hit’s their brain, giving them a concussion.

“I came inside Bri’s nose so hard last night that she got a cumcussion.”

Cumcussion by mattdaddy69 May 2, 2018

Cumcussion 

1.When you ejaculate so hard you get a concussion
2.When you ejaculate so hard you slam your head against a wall during your climax.

Dude I had such good sex last night I got a cumcussion.

Cumcussion by JimDal December 12, 2016

Cumcussion 

When you cum so many times in someone's face, they pass out.

Green: "Hey, do you know why Kat is in the hospital?"
Miso: "Yeah, I came so many times on her face, she got a cumcussion."
Green: "Sweet man, I'll have to try that out some time."

Cumcussion by Eldahat July 24, 2014

Cumcussion 

when you're making out with someone and you smash your girlfriends head on the wall.

Damn this man really gave me a cumcussion!!!!!!

Cumcussion by Chickentenderbaby! November 21, 2020

cumcussion 

when someone cums on your head and then you get a concussion

person 1 - "i heard Katie got a cumcussion"
person 2 - "i'm not surprised, she was hanging out with Ryan last night"

cumcussion by iswallow1234 October 10, 2021

Cumcussion 

When you ejaculate in her throat and shake her head

She told me I gave her a cumcussion last night during foreplay

Cumcussion by Jammerhead May 2, 2022