Blow your ass out 

To suddenly release a load of wet shit that has been held in for hours, causing it to explosively exit your body.

How am I supposed to use the bathroom right after you blow your ass out?

Blow your ass out by mittim80 April 25, 2022

blow my brains out 

what i will do in a few days

me: "I'm gonna blow my brains out soon"

blow my brains out by jayma13222 November 9, 2022

Blow her back out

To give a woman or women the best dick from the back she will ever get you know when you’ve blown her back out when she wants you to do it again the next time y’all fuck

Omg Dominic is about to blow her back out

Blow her back out by The friendly neighborhood BDSM October 22, 2022

blow my guts out 

violent, explosive diarrhea

That bad Chinese takeout we ate last night made me blow my guts out. My roommate could totally hear me over Call of Duty.

Bradley ate two dozen hot wings. He was blowing his guts out all afternoon.

blow my guts out by Ms. Awful May 18, 2015

Blow a fish out of one's ass

An expression which helps create an image of how angry one is/was at the time.

"I was so pissed I almost blew a fish out of my ass!"

Blow a fish out of one's ass by Bettie Who May 1, 2005

Blow her neck Out 

When a girl gives a guy head and he cums in her mouth so hard she chokes on it.

Joe blew Lauras neck out last night.

Blow her neck Out by Alison, Laura and Erin March 12, 2004

blow his brains out 

the act of someone shooting him/herself on the head.

Tommy decided to blow his brains after hearing the horrible news.

blow his brains out by KRHimself November 2, 2004