Let's define the "Functional" in Functional exercises

There seems to be tons of catch phrases in health and fitness.  It seems that if you happen to use the term "functional" in front of some exercise, it makes the same exercise better.  Like stating that the "functional" bench press is better than the bench press. 
What does the term functional mean?  The term functional describes having a purpose or relating to the way something works or operates.  So a functional exercises should relate to something that mimics a task or movement that we do in our sport or life.

So can an exercise like bench press where you are on your back pushing weights in front of you be functional?  I believe it can, but it isn't for everybody.  It may be functional for a mixed martial arts fighter who may be on his back pushing his opponent away from him, but utility is even probably limited in this aspect (the MMA fighter would be dealing with something that moves and changes its weight distribution, not a static weight with a bar).

A squat can be a functional exercise.  It is something that everyone does daily.  From getting up out of a chair, to lifting a box off the ground, it is a movement that we can practice and improve upon.

So keep in mind, a functional exercise pertains to movements that we do regularly (in sport or life).  We should be doing exercises that include lifting, carrying, pushing, pulling, turning, twisting and dragging.  The term functional should not be used to make an exercise sound better than it is.