Acronym for "Too Lazy For That".
It is used as a response to somebody that gives you a task but you really don't feel like it.
DON'T USE IT WITH YOUR BOSS.
Co-worker: Please, update that business proposal, it has grammatical errors.
Me: TLFT. Maybe I'll do it tomorrow.
Acronym meaning "Too Long For Text"
Typically used when 160 characters-or-less just won't cut it, four of the characters are used to write tlft and imply that the epic story will be conveyed in a higher-capacity medium e.g. vocally, electronically mailed (or "e-mailed"), instant messaged (IM'd), etc. One can also be slightly redundant in the same text and follow "tlft" with "tell you later."
Text 1: So what happened after you left the bar w/ that pornstar lookin chick?
Text 2: Well we got back to her place and started makin out. Then her roommate came home and... fuck man tlft, tell you when I see you later.
Text 3: Yea or I'm sure I'll read about it in Penthouse.
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Text 1: So what's this Unified Field Theory or whatever of yours again?
Text 2: First, ass clown, it's Grand Unification Theory and second, tlft.
Text 3: I anticipate uber boredom. Please wait til I've had a few shots... of heroin.
Acronym for "Thicc like French Toast"
Daaaaaaamn they be TLFT. Hand me some syrup cuz we bout to brunch.
You know Lizzo? She's TLFT. Crush confirmed.