It stands for "Fuck The System", made famous by Hardstyle DJ, Showtek.
"Showtek - FTS (Fuck The System)"

This is what I love, and can't stop lovin'. Get wasted at parties, from 9 till 7 in the morning. I live for the music, rollin' blunts, feelin' high, gettin' loaded, or take some pills and go to La La Land. Spendin' all my money on dope and extreme high price tickets.
But in the end, it's all worth it.
I like to live in my own world. Fuck regular life! Fuck a '9-to-5' job!
I'm told to enjoy every moment, every hour, every minute. That's what I do at Fridays and saturdays. Why should I take life so seriously? I just want to do, what I like to do! Be far from reality, 'cause I can't stand society! It's my own world, I just want to hear the music.

I think the whole system fucking sucks.
everybody's working their fucking ass up during the week, getting totally fucking stressed out, So what's wrong, and what's right?

I live for the weekend, I live for Hardstyles, I live for Hardstyle baby!
Come on, lets go!
by Travito August 14, 2008
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Fuck The Suck

FTS goes way back before the tweeting/texting definition people are giving it today. Back in the 90's while I was in the Marine Corps I saw FTS written all over the place. I asked a crusty older pissed off Terminal Lance what it meant, and he told me it was fuck the suck. He went on to say it was based on some old movie where they said prison was "the suck" because it sucked the life out of you...and that the Corps did the same thing hence The Suck. So FUck The Suck is fuck prison, fuck the Corps, fuck your dead end minimum wage job, fuck living with your parents when your 35 making coffees at starbucks or whatever your own personal hell is that is sucking the life from you.
Normally written out of sight on random things inside the suck (backs of clocks, under desks/cabinets, behind shit).

"Hey man, are you going to reenlist for 4 more years?"
"FTS"
"Yeah, FTS. They can't pay me enough to keep me in this motherfucker".
by crustySGT May 9, 2014
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FUCK THAT SHIT. Similar to the way LOL or BRB are used, FTS is an acronym that can be used in varying circumstances.
That bitch was all up in my face and I was like... "FTS"
by Ari55 June 30, 2006
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jess broke up with ben yesterday and is already talking to another guy. she’s definitely FTS”
by hox678 July 27, 2020
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FaceTime sex

One can discretely talk about their sexual activity around friends and family with this. Typically used in long distance relationships.
Guy: Maybe FTS later?
Gf: Please!
Guy: Deal.
by Captain D00M June 13, 2019
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Fuck that/this shit or forget that/this shit
"Man, I hate getting rejected every time I come to the club! FTS, I'm out! "
by loredaj March 31, 2010
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