a term used by adolescent whores prior to, after, or while doing something morally unacceptable or blatantly idiotic.
example 1:
kelly: "so I might have just given an old man a bj for some cocaine.."
lori: "what the fuck! I thought you were gonna make better choices after setting the Lawson's cat on fire.."
kelly: "fuck it, you only live once.."

example 2:
dawson: "man, can you believe it, after 2 years of being together, amber goes out and cheats on me! then, to make it worse, she tries to defend herself by saying 'you only live once!'.. fuck her."
ken: "so not cool. what a fucking stupid whore."
by sick of dumb sluts October 11, 2011
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I agree with the above definition. It is also a song by The Strokes.
by Quitelate September 7, 2006
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Mostly used as the acronym YOLO, it is said when pushing the limits, doing something dangerous or different from what you normally do.
man 1: I am not sure that skydiving was a good idea...
man 2: Come on man! You only live once!

(man 2 pushes man 1 off the plane)
by linguistmaniac April 1, 2019
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YOU ONLY LIVE ONCE SO GO FUCKING NUTS!
Push your care, push your burdens aside
Erase everything inside and leave just one thing on your mind.
You only live once so just go fucking nuts! (Go!)
Live life hard
Live life hard
You only get one shot
So shoot!
With every breath you take you're dying
With every step we take we're falling apart
If we only had one chance we'd breathe
Let's take the chance right now and scream
You only live one life
For a very short time
So make every second divine
Go!
Live life hard
Live life hard
Are you still breathing?
It's your heart that's beating inside
That keeps us alive
And for the very first time
We're pushing aside (to surrender)
Everything that I see in my eyes
Except for the one thing on my mind
That I am alive
For the very first time!
by Cumdog with mustard May 3, 2021
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A person with a narcissistic behavior mentality who has NOTHING to offer you but humiliation, laughter behind your back, discussions you've had with them privately are discussed with others, accuses you of doing things when you're not doing, and this narcissistic person is 100% insecure in themself.

Do not confront them about their behavior; YOU and they KNOW what's really going on---we all grown.

Once your INSTINCTS (i.e. your BOUNDARIES are CROSSED--no matter HOW small the boundary is) tells you to RUN---RUN and DON'T look back. Once you allow them to GET away with THIS...now they'll try for THAT and before you know it---your SELF-ESTEEM is being run over! Don't let it HAPPEN!

You are BETTER than to have to THURST for attention. Flip them off PROUDLY!!
a. Someone who sees you are happy with yourself/in yourself (whether you're SINGLE or MARRIED) and then tries to convince you that there's more to life than the person you're with (SINGLE or MARRIED).

b. Once they lower you to their level of manipulation---they IGNORE you (i.e. all CONTACT stops).

c. Run...what run when you hear the phrase "live for once" and don't look back.

d. Remember this---You are fine! When you hear the phrase "LIVE FOR ONCE!" You tell them "....and just keep enjoying the view of it"

---because they will NEVER have you and by the way; tell them to go find a small ROCK and CRAWL under it!

e. Gird your loins because you should not FALL for their stronghold (selfish tactics to have their way with you).

f. Don't do it.
by Redeemed October 16, 2013
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