Define nasty little bugger, and how do they fit in this 'gay' forum?

well, bugger is slang for anal sex, does that work?

Sure, but I think the term brownie makes more sense. What exactly does the spider to that is unique?

Has fangs that penetrate deep and nest in dark, moist places?

Sounds like my girlfriend. Only she isn't a vicious spider with the blood lust of a Klashnikov.

Saw that in IGN, after reading it was a dude I tore out the picture and threw it in the waste basket.

Dude Looks Like A Lady, all right.
(And how come nobody mentioned Birdo or Bridget in here yet?)

I forgot about all about Bridget, but I've also never played any of the Guilty Gear games. Birdo is a weird one alright, and Nintendo seems to have tried to change it into an actual "female" instead of a male.
Speaking of disturbing Mario trivia...ever wonder who is the mother of all those Koopa Kids? I'm beginning to think Princess Peach isn't exactly getting captured on accident.

I've wondered the exact same thing, but haven't dared to find the answer since Rule 34 usually rears its ugly head in the process.
(And even if it was Peach and Bowser, how would it even WORK? Probably the same way HSOWA in a certain other Nintendo franchise works, if it ever came to that...)

Well, the toad people are a cross between man and mushroom, so theres some either some kinky shit going down in the Mushroom Kingdom, or Dr Mengele was reincarnated as a Magikoopa with a "My First Genetic Abomination" starter kit.