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TIL

Today I learned.

ˈtɪlmainstream118 viewsLast reviewed Jun 12, 2026+ Add a definition
🌐 Internet & Memes
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#1·Jun 6, 2026informal

Today I learned. The signature opener of Reddit's r/TodayILearned community, used whenever someone wants to share a fact, statistic or piece of trivia they've just discovered. The format has spread off-platform and is now a generic way of flagging "here's something I didn't know until just now".

TIL that octopuses have three hearts and blue blood.
Source: common-knowledge
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🌐About Internet & Memes slang

Viral internet speak — memes, ratios, main-character moments, and the algospeak of every platform from Twitter to Reddit to TikTok comment sections.

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