What is Nose-diving?
1.
1. To rapidly and steadly down-grade one's own motivation and progress in anything relating to life. Eg. fucking up or losing in life.
2. The event in which an airborne object front-end(line-of-vision) first descends toward the earth.
3. Actively snorting cocaine on a regular daily basis. Snorting cocaine with addiction.
I don't nose-dive anymore.
or
That man has been nose-diving since he quit his job and ain't working.
or
His frisbee toss took a nose-dive into the mac and cheese dish at the barbeque.