diaphragm 

A thin flexible disk, usually made of rubber, that is stuck up in a woman's pussy so that it covers the cervix and keeps the boyfriend's sperm from gettin' to her eggs when he cums inside her, thereby keeping her from gettin' knocked up.

My girl forgot her diaphragm so I had to pull out and cum on her tummy (ass-crack, back, whatever).

diaphragm by xr7 September 2, 2004

diaphragm 

A circular device usually made of rubber placed in a womens vagina to cover the clevis. It is used during sexual intercourse to protect her from getting the males sperm inside of her

She told him she liked to use a diaphragm during sex then a condomn

diaphragm by Tarazz December 23, 2005

diaphragm 

The part of the human body that tightens and moves down to create lower air pressure in the lungs than in the outside environment, allowing air to move into the lungs. This part then relaxes and moves back up, generating higher air pressure in the lungs than the outside environment, forcing carbon dioxide out of the lungs. This part also separates the chest cavity (cardiovasuclar and respiratory) from the abdominal cavity (digestive system), which is why your chest expands as you breathe. Also that fancy part of an air horn that rapidly vibrates in response to air movement, generating that screeching sound.

(From Business Insider) "When you take a breath in, your diaphragm tightens and is pulled down to allow your lungs to expand. When you exhale, your diaphragm relaxes and is pushed back up to expel the air from your lungs."

diaphragm by Tornadopelt March 13, 2019

Diaphragm 

There are two definitions used in different contexts:
(In singing)

1. A muscle in your lower chest under your lungs. Many singers and theater kids know this definition due to how often it is mentioned by singing teachers. You can feel yourself use it most whenever you are about to sleep or whenever you are breathing without thinking.
(In sex/contraceptives)
2. A round disk inserted into a vagina to prevent sperm from reaching the egg and getting a woman pregnant. It is about 88% effective due to improper use. It is best used with spermicide. Very few women chose to use diaphragms because of their lower efficacy as well as the need to see a doctor to get one.

1. "Activate your diaphragm! Aim your voice out, don't sing under your breath. I can't hear you!"
2. "I use a diaphragm, but it's a bit of a hassle. I might just use pills. What do you think?"

Diaphragm by Pseudonyms are alright September 19, 2021

diaphragm 

a body partition of muscle and connective tissue

AmieLynn is continuing to recover from a recent surgery that improved her chest incision and created more space for her heart, diaphragm and lungs.

diaphragm by Thetntteam May 17, 2023

diaphragm 

a dome-shaped muscular partition separating the thorax from the abdomen in mammals. It plays a major role in breathing, as its contraction increases the volume of the thorax and so inflates the lungs.

Chickens don’t have a diaphragm, and their lungs can’t contract. They breathe by moving their entire ribcage to draw air into the lungs. That’s why you can accidentally stop a chick from breathing if you hold it with a firm grip. Chickens also have air sacs and a double respiration cycle.

diaphragm by bluestinger66 August 16, 2023

diaphragm display

The part on the human body below your chest and above your stomach.

Wow, that dress has a beautiful cutout accenting your diaphragm display!

diaphragm display by Thebellabee September 11, 2023