What does TIL mean?

Other definitions of TIL:
- A slang shortening for "until". Used often in text communications.
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How to use the term
TIL:
TIL about this website
They ain't coming 'round 'til supper.
References:
Today I Learned (TIL) Subreddit | Reddit
- A Website that mentions "TIL."
A subsite within Reddit, a social media sharing site, that focuses on quirky, little-known facts and trivia sharing.
This subreddit has been operational since 2008 and is likely one of the major driving forces behind the acronym's use.
- Check it Out
More slang terms:

Tripe
Nonsense or foolish talk, typically dismissive in nature.

Ratchet
An adjective describing something or someone crude, obnoxious, or disgracefully uncouth.

Ate
Performed with exceptional skill, style, or confidence, demonstrating excellence.

Dutch Oven
A crude prank in which someone traps another person under bed sheets after flatulence, creating an unpleasant situation.

Fishing in the Dark
Engaging in romantic or sexual activities secretly, usually at night.

OMD
An acronym standing for 'Oh My Days', an expressive reaction used to convey surprise, disbelief, or dramatic annoyance.

TMU
A texting slang acronym for Tell Me Upfront.

Bubble Guts
A sensation of noisy or unsettled abdominal discomfort, typically preceding a bout of diarrhea.

Demon Time
Late-night, often scandalous or wild online activities.

Headass
A mildly insulting term describing someone acting foolishly or saying something incredibly stupid.

Jive Turkey
A person engaging in deceptive or nonsensical talk, often in an insincere or exaggerated manner.