Floodgates 

when a man is masturbating and all of a sudden lots of cum just spurts out.

mate: " oh mate yesterday when I was masturbating the floodgates just opened, there was cum everywhere!"

you: " okay......"

Floodgates by urbanDICtionary November 28, 2012

The floodgates of my anus 

When something involuntarily enters or exits your anus.
When the sphincter muscles of your anus are no longer under your control.

I'm just warning you that when I fall asleep the floodgates of my anus will open and I have no control of it.

The floodgates of my anus by sphincter muscle July 4, 2016

floormatt parker 

to take a fat, wet shit on the floor, adjacent to entry, of a public establishment. similar to dirty bruno

i hated that place, so i took a mean floormatt parker in front of the entrance

floormatt parker by jose suarez May 9, 2006

floodgates 

Synonymous with the act of hooking up; used as a noun. In accordance with this, "Opening the floodgates" also refers to the act of hooking up.

Guy: "Hey, it's been a while! How do you feel about re-opening the floodgates??"
Girl: "Yeah, I'd love to. It's been so long since we closed them."

floodgates by grettathegiraffe August 26, 2017

open the floodgates

The point at which you first piss after you have been drinking your favorite alcoholic beverage and at this point you will be pissing every ten minutes. See 'break the seal.'

I can't hold it anymore, I have to go open the floodgates.

open the floodgates by Jack Lanton July 31, 2006

Floormat 

Technical diagram and area blueprint of a room's layout, commonly a convention or meeting hall, convention room, business office, etc.

I am awaiting the room's floormat so as to ascertain it's logistical requirements.

Floormat by TheTruthSpeaksAgain December 11, 2011

The floodgates of my anus 

When something involuntarily enters or exits your anus.
When the sphincter muscles of your anus are no longer under your control.

I'm just warning you that when I fall asleep the floodgates of my anus will open and I have no control of it.

The floodgates of my anus by sphincter muscle July 4, 2016