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TTYL is letters that mean 4 words, witch people like to use a lot. If people are saying some sort of fast bye if they're in a rush then chances are they will say TTYL (T=Talk) (T=To) (Y=You) (L=Later) TTYL means "Talk to you later".
"Oh no I'm really late for work TTYL"
"TTYL (Facebook message)"

"I got a doctor's oppointment right now if I don't get there I'm gonna be late TTYL".
by Loving360 March 05, 2016
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Acronym for Talk To You Later. Often Used in Texts or Messages
Person1: Hi
Person2: I'm Busy TTYL
by RANDOMGUYWHOISLONELY August 16, 2018
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Ttyl means: Talk to you later.
Its and internet slang which shortens Talk to you later.
Friend: I gtg! Bye ttyl
You: ok bye
by Lovelytaetae July 06, 2016
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talk to you later
(which I thought was totally text you later for years)
Person 1: Bye
Person 2: TTYL
by Hi_bye_hey March 10, 2019
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