#fmj

Forget My Job or F@%k My Job

Full Metal Jacket It is a movie, but as that has been covered I will give it's original meaning.
FMJ is Full metal jacket. A bullet that has a copper (or some other metal) covering or "jacket" over its lead core. This is done so that the bullet has more penetration and won't pancake on impact. Note some bullets have no metal jacket. The standard .22 caliber is an example. A hollow point bullet has a hollow tip that makes it a highly lethal manstopper because it will pancake inside the body causing more damage to organs. Theese such bullets are outlawed by the Geneva Convention.
*Note FMJ bullets are not the same as armor peircing bullets.
Why on earth would any sane 13 yr old know this?

FMJ refers to ammunition, specifically for small arms (rifle & pistol) in which the bullet (typically with a lead core) is fully encased in a metal jacket (typically copper). Full Metal Jacket ammunition differs from a soft point or hollow point bullet whereby the tip is designed to fold or mushroom upon impact serving two main purposes: creating a larger cavity wound and preventing over-penetration of the target.
FMJ ammo on the other hand is less prone to deformity and tends to retain it's shape upon impact, penetrating the target and whatever obstacles may be in the way of that target.

FMJ, short for "Fuck My Job", has been used to indicate a severe distaste for one's job, when one doesn't wish to express that distaste for all other aspects of his or her life, as then a more comprehensive and complete term FML would be used.

Short for Fuck my jaw

Fuck My Job.

Expression used when bitching about ones job.

Fuck My Job