when life is getting someone down, the best piece of advice for them is to keep their chin up and go balls out and not let anything get to them.

The phrase "to get your balls out" means to pluck up the courage to do something. This can be anything, from riding a ferris wheel, to jumping off a tall building.
It is based on the theory every one has the courage or "balls" to do something, it is just a case of "getting them out"

a term used by athletes who consistantly wear their hair back for convenience during workouts, but for whatever reason, decided that today, they would just wear it down; usually accompanied by a "fuck it" mentality. most commonly found in female athletes.
this also occurs when the athlete forgot to bring or lost any bobby pins, hair clips, etc that they were planning on using.

Just like bawling ou eyes out....but not...
Usually used for when men cry

basically, it's just anything that's really intense as fuck.

All Out Ball Out. When someone has sex with as many girls as they possibly can in a restricted time domain. Usually involved with heavy drug use and alcohol.

Just like whip your dick out, this is a bigger sign of strength and ownership. Whipping your balls out means you own every situation because you're fearless and have the biggest balls in the room.