RTS 

Real-Time Strategy. Refers to a strategy-based computer game, generally involving management of an army or civilization.

Command & Conquer is an RTS.

RTS by Geoff January 19, 2003

RTS 

Return to Sender. What you reply when someone sends you a text message and you don't want to hear anything the sender has to say.

Tom just got a text message from his girl saying that she doesn't wanna be together anymore. He replied RTS and kept it moving.

RTS by Zinkyyyy July 7, 2009

RTS 

Ready to Slay

Paurush is going to Last Resort tonight, he must be RTS

RTS by BruhBruh November 8, 2014

RTS 

RTS: Restless Texting Syndrome

When an anxious texter sends a second message after his/her first message has not been responded to for an extended period of time.

The message is different from his/her first text message and is done in an attempt to extend the conversation for fear that his/her previous message was viewed as a conversation ender.

Feelings of anxiety, restiveness and rejection are often felt before the syndrome yields its first "restless text "

Jessica: omg this kid wont stop texting me, I didn't respond to his last text and now hes sent 3 more trying to start a new convo

Jennifer: Classic RTS

RTS by RestlessTexterAnonymous January 2, 2010

RTS 

'Right This Second'

as in...
'Give me 3 tacos & a million dollars RTS & I'll tell *so&so* exactly what everything thinks of her but is too chicken to say.'

or...
'I'm not 100% sure if I need vodka or a hug or 12 hours uninterrupted sleep, but RTS, I'd entertain any of them!

RTS by debkwebr July 1, 2018

RTS 

A type of game that kicks the shit out of all TBS games. Lets see, how many good RTS's are there?

Command & Conquer(all of them)
Age Of Empires
Warcraft(all of them)
Starcraft

How many good TBS's?

Civilization(all of them)

Then theres always the hybrid game Rise of Nations, which is cool.

omg omg omg i r teh tbs fag and got pwned at starcraft cuz he uber rts guy!

RTS by Elite November 22, 2003

RTS 

Radio-Televizija Srbije, which is the public broadcaster of Serbia. There are two channels, RTS1 and RTS2.

E, brate! Jel si gledao tekmu juce na RTSu. Srbija je pobedila Belgiju 1:0. Nikola Zigic je dao go.

Hey man! Did you watch the game yesterday on RTS. Serbia beat Belgium 1:0. Nikola Zigic got the goal.

RTS by BGD16 April 9, 2007