1. When someone finally realizes that they have no life whatsoever, because a life does not consist of playing WoW for 20 hours out of the 24 hour day.
2. When someone dies, and they have a really hard time dealing with it.

Tendency for users new to Facebook (generally age 30-50) to completely reassess their lives after comparing themselves to the Facebook profiles of people known to them only in high school and college. May trigger some individuals to believe that the newly discovered and superficial Facebook interactions with former friends means that they are now friends again in real life - despite the fact that there has been no desire for contact for the past 20+ years. In severe cases, those afflicted with a Facebook mid-life crisis may attempt to recapture their perceived glory days of high school and/or college by trying to get back to their prom weight, attempting to date a past high school crush, or setting up a drumset in the basement.

One has a half-life crisis the night before a large project or a big test is coming up the next day in ones Chemistry class.

"My parents told me I can do anything with my life, be anyone I want to be and that the possibilities are endless...not like in their generation"

A new term for those born in Gen Y. It refers to the time when you have completed college or University and you have no clue whether you want to get married, be single, find a career, travel the world, invest, spend, start your own business, move to another city or country, settle in one place, go back to school, pay back debt... basically an exciting yet horrid time when you are happy one day, suicidal the next, and during it all.. all you can think about is... "If my 20's are supposed to be the best time of the life, then why I am so fucking CONFUSED?"

When the world should be your oyster, but is really your Inferno. A period of time, right after high school to late twenties, where you are expected to perform and act exactly like the other adults who are ten years your senior or older, yet more than likely no one has taught you the basic ideas and attitudes of how to be successful in the real world. You will also find out that many of the well intentioned adults, or the adults who wanted to feel important, (teachers, parents, etc.) who actually gave you advice or put in there two cents when it wasn't asked for, were down right dumb, if not delusional, and had no clue what the hell they were talking about when it comes to being successful in real life.

So you are left to figure out much of it on your own. Most of the areas of your life you will be confused about are dating, career, finances, finding a place to live, and friends. This is more than likely going to be the worst time in your life.

*THIS IS NOT A JOKE* This will make the on-going, never ending, day to day, living hell that was high school or middle school seem as easy as breathing. You will more than likely wish you were still in high school, middle school, or 10 years old back in elementary school...just so that you'd be sheltered from and never have to know the never-ending mental turmoil you are going through.

The time when you reach your 20s and you realize that you have no money, no job, no properties, no credit (not enough) and no significant others.

The "mid life crisis" you might get when turning 16, or another young age. Happens when you realize you are no longer Peter Pan, defender of adolescent bliss and are at some point in your life going to have to live all alone.