Mature

You might think it means..."Games made for an adult audience."

It actually means..."Games with boobs, swearing and violence made for 12-year-olds."

Hardcore

You might think it means..."The gaming literati, the core users and trend-definers of gaming."

It actually means..."The people with most time on their hands to play and comment on mainstream games, i.e. teenage boys."

Nice to know though that the majority of you here are perfectly comfortable with your sexuality that you are fine playing with games that involve something other guns and killing hookers.

And if the Wii is so crappy, why is it still selling? Oh that's right it's being bought by dumb casual gamers. Ahem....

Casual

You might think it means..."People who play onlyBrain AgeandFarmVille."

It actually means..."The average consumer."