When a gay person develops feelings for another homosexual solely because they are gay. They see them as an option and subconsciously develop feelings because of this. Usually it wears of after a few weeks and is most common in young gays who are trying to figure themselves out and don't have as many open gays around them.
Gay: Hey man i heard Andy was gay, i think i like him.
Friend: No you just have gay fever.
Gay: shit man your right.
when a gay or a homosexual has been single for a long time and haven't been in a relationship with another gay and they start to get sad over and and start dreaming of being gay with another
Person #1:Man I've been single for awhile! I want someone to be gay with!
Person #2 : Looks like you have gay fever.
Person #1 : Wow, I think you're right.
n. software that is no longer sold or supported by the original publisher / developer, often found as free downloads on the internet because it cannot be obtained elsewhere. Not legal, but often seen as morally acceptable because the company that made it is no longer selling the title, nor releasing it as freeware, therefore abandonware is "keeping the gamealive", so to speak.
Doom II is not abandonware because idstill sells it, while The Incredible Machine is not sold, therefore is abandonware.