The world classes (first, second, and third) have no official definition, but are often times used to describe the economic position of a state. The differences between the classes has less to do with the economic well being of the nation, and more to do with the geopolitical divides that emerged during and after the cold war.

First world is generally defined as a western style state that is usually capitalist and democratic, which has a high standard of living.

See also: second world and third world.

There is one world, not three.

the state of being super hungry when there's nothing available to eat but lots of food you don't feel like eating.

When you have a fridge and pantry full of lots of good food but won't eat anything normal because you crave junk food.

Problems from living in a wealthy, industrialized nation that third worlders would probably roll their eyes at.

Adj. Being in such financial straits as to not have the means to purchase basic necessities while in large credit card and/or student loan debt and still owning other luxury home entertainment items. I.e... a person can't buy groceries or gas to get to work, or unable to go out with friends on a Friday night, but owns things like a laptop, smartphone, Wii, HDTV with satellite, ipod, etc...

Someone focused on relatively trivial feminist issues in wealthier countries while neglecting much more important issues elsewhere.