Weinal Membrane 

The skin around the tip of an unsurcumcised weenis.

The doctor removed his weinal membrane and reinserted it into his anal arena.

Weinal Membrane by Eric April 7, 2005

Weavi Membrane 

It is a small membrane located on the back of your neck, that enables you to breath underwater. This membrane is extremely rare. Only about 1 in 6 billion people have it. Scientist were amazed that they found the one person who had this membrane. This person has been asked to stay anonymous. If you think you might have this membrane, go and tell your doctor.

So yea...ummm, last night when I was taking a bath, something incredible happened. I slid down in the tub, to where my entire body was submerged, and I noticed that I could breath underwater. I went to my doctor the next day, and he told me I had the Weavi Membrane on the back of my neck. It allowed me to take the oxygen out of the water, just like a fish. It's quite incredible!

Weavi Membrane by Falcon86 November 8, 2009

Paper membrane sacking (PMS) 

Two females performing 69 underwater, using each other's vaginally cavity as a re-breathing apparatus.

The girls enjoyed paper membrane sacking (PMS) in the Caribbean waters more than snorkeling.

Paper membrane sacking (PMS) by BluntedBlazer December 31, 2017

Cosmic membrane 

What connects all consciousness in the universe

I connect to my cosmic membrane to find my origins

Aka Akashic Records

Cosmic membrane by Adam Rhys Campbell November 11, 2020

cell membrane 

the girlboss of the cell

the cell membrane is the gatekeeper of the cell

cell membrane by funkyfunkster January 17, 2022

membrance 

A tattoo or decal that commentates the life of a passed love one.

Tyrone bore the membrance of his homeboy on his left shoulder.

The back window of Jesus's El Camino was decorated with a membrance of his passed mother.

membrance by Dr. Kidd Von Diamond March 24, 2017