The state of being so homosexual that that one actually exudes a physically tangible aura of gay.
Strong gaydioactivity has been known to confer properties of gay to surrounding objects or people.
Dude, your house is so gaydioactive that it's turning the sky pink.
A scientific understanding of gaydioactivity led to the development of the Village People, the weapon used to end the Culture War of the 70's.
The electrifying and sometimes nearly toxically strong energy given off by a dude when he wants, even aches for, another man in the room.
Joey: Did you see the way he looked at me?
Greg: No man, what?
Joey: Damn gurl, I got third degree burns - he is cruising me alive with that gaydioactivity!
Greg: Get his number and let's have him over!