A list or collection of the words or phrases of the language of one who describes everything perceivable as "gay". A vogayulary is far more succinct than a standard vocabulary, primarily because all the words that would be considered adjectives to one with a vocabulary are replaced with just a single word to one with only a vogayulary, that word being "gay".
Matt: "Did you get the video I sent you?"
Josh: "PFFF that video was so gay."
Matt: "Wow, way to use your vogayulary"
Words created to fill a void in the language, usually spontaneously created during conversation. Terms created through evolutionary vogabulary are usually a combination of two or more words, that when woven together more perfectly express an idea.
Annie, Felisa, and Peter were discussing the night that Charlotte got petrifurious at Peter for jumping out of the bushes along the dark walkway next to their house. She cried the whole time she whaled on him, and he was laughing so hard he couldn't get her to stop until he was pissterical. Annie realized that in their rush to define the event, they had discovered evolutionary vogabulary.