leet speak
/liːt spiːk/
UncommonAn internet writing style that replaces letters with numbers or symbols, like 3 for E and 0 for O.
Mostly ironic today. Typing in leet speak now reads as a joke or nostalgic callback to early internet culture, not as a genuine flex.
Real-world examples4 examples
| # | Example | What it means | Source |
|---|---|---|---|
| 01 | omg he typed the whole message in leet speak. it's 2024 dude | Mocking someone for using an outdated internet style. | reddit, 2023 |
| 02 | h4ck3r voice activated. leet speak only from now on | A joke about pretending to be a hacker by switching to leet speak. | x, 2022 |
| 03 | my older brother taught me leet speak in like 2006 and i thought i was so cool | Nostalgia for discovering leet speak as a kid. | |
| 04 | y3s 1 4m v3ry h4x0r | Demonstrating leet speak as a bit. | x, 2021 |
Use it when
- You are referencing old-school internet or hacker culture.
- You want to be ironic or mock early 2000s online culture.
- You are explaining internet history to someone.
Do not use it when
- You are seriously trying to communicate something.
- You are writing for a professional or general audience.
Variations and related forms
Origin and context
Emerged in the 1980s on bulletin board systems (BBS) among hackers and phreakers. The name comes from the word 'elite', shortened to 'leet'. Spread through gaming and early internet forums through the 1990s and 2000s.
- First seen
- 1980s
- Confidence
- high
Cite this page
Use this stable URL to reference the entry.
https://slang.fyi/leet-speakUpdated: 2026-08-28License: CC BY 4.0