The beginning is usually occurring in males in their early to mid thirties, it typically entails the subject going into a more juvenile state of mind thirties that includes excessive partying, excessive eating, promiscuous sex, chain smoking, every night binge drinking and drugging. This differs from a mid life crisis in the sense that the very activities of a 3/4 life crisis will eventually bring about your demise. Usually triggered by life changes.
“My ex wife told me she thought that I started having a three quarter life crisis at the age of 35.”

“I told her I’m shocked that she thinks I’m going to live to be 44!”
by Dunkin_Johnson December 19, 2021
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The depression, ennui, and disorientation experienced when, for the first time in your life, you lose your job AND you are over the age of 55.
Jane: "Wow. I cannot believe that after working for The Company for 18 years, they eliminated my position, without so much as a warning. I have never lost a job before! "
Dick: "Sounds like ageism to me. Welcome to your three-quarter life crisis. Sucks"
by BigKJS November 24, 2016
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