a person who is actually gay. This is really rare among all people. People turn natural gay when they are babies and have problems with their brains when they form. therefore when something is supposed to be set to "straight" it is set to "gay" instead.
person 1 : "look at johnson, whats wrong with him?"
person 2 : "oh, he's a natural gay."
person 1 : "oh, thats unfortunate"