Internet slang

What does ICYMI mean?

Short for “in case you missed it,” used to reshare or draw attention to something posted earlier.

Also written: In Case You Missed It · in case you missed it · ICYMI:

The meaning

ICYMI means “in case you missed it.” It introduces a reminder, recap, link, or repost for people who may not have seen the original item when it first appeared.

What’s the tone?

Helpful and neutral in most cases, though frequent promotional use can feel repetitive or attention-seeking.

When and how to use it

ICYMI usually comes before older material being resurfaced, such as “ICYMI: here’s yesterday’s announcement.” It tells readers the content is not necessarily new, only being highlighted again.

In a conversation

Original examples to illustrate the expression.

Dana

ICYMI: the meeting notes and recording are now linked in yesterday’s post.

Leo

Here’s the weekend photo set again, ICYMI.

Easy to misread

ICYMI does not mean the information is breaking news. It differs from TIL, which introduces something the writer just learned, and from TL;DR, which provides a summary.

A little context

ICYMI developed as concise online shorthand for resurfacing earlier posts and links in fast-moving feeds. Established dictionaries and editorial coverage agree that its defining function is directing attention back to previously published material; the entry does not present its dictionary recognition date as its origin.

Sources & further reading

These sources support the explanation. The dialogue above is original.

  1. ICYMI Definition & MeaningMerriam-Webster · Checked Oct 25, 2026

    Defines ICYMI as in case you missed it and specifies that it draws attention to something previously published or posted online, with multiple public examples.

  2. ICYMI | English meaningCambridge Dictionary · Checked Oct 25, 2026

    Defines ICYMI as the written abbreviation for in case you missed it, used when reposting material that is not new.

  3. Merriam-Webster Adds FOMO, Mx. and About 2,000 Other WordsTIME · Checked Oct 25, 2026

    Reports ICYMI as shorthand used to draw attention to material published earlier and explains its role in busy online information streams.

Prepared with AI assistance and automated quality checks. Meanings can vary by context. Read our editorial policy.