nat 1
/næt wʌn/
CommonA critical failure roll in D&D. Slang for spectacularly botching something.
Usually self-deprecating or used to mock a failed attempt. The humor comes from how badly things went, not just that they failed.
Real-world examples4 examples
| # | Example | What it means | Source |
|---|---|---|---|
| 01 | tried to introduce myself to my crush and tripped over my own chair. nat 1 on charisma. | A social situation failed in the most embarrassing way possible. | x, 2024 |
| 02 | my barbarian rolled a nat 1 on an attack and hit our cleric instead | The player's attack roll failed so badly it caused friendly fire. | reddit, 2023 |
| 03 | presentation was going fine then I said the wrong company name. nat 1 on perception. | A small oversight caused something to go badly wrong at a critical moment. | x, 2024 |
| 04 | sent the screenshot to the person it was about. nat 1. | Made the worst possible mistake in a social situation. | tiktok, 2023 |
Use it when
- Someone rolled the worst possible result in a tabletop RPG.
- Something went wrong in an unusually bad or embarrassing way.
- Making fun of yourself for spectacularly failing at something simple.
- A plan backfired worse than anyone expected.
Do not use it when
- Something just failed normally.Use “L” instead.
- The failure was expected or predictable.
Variations and related forms
Nat 1 vs nat 20
nat 1
Nat 1 is a critical failure. Something went as wrong as it possibly could.
VS
nat-20
Nat 20 is a critical success. Something went as right as it possibly could.
Origin and context
Comes from the d20 system in Dungeons and Dragons, where rolling a 1 on a 20-sided die causes a critical failure. Many rule variants make nat 1s cause dramatic side effects like friendly fire or dropped weapons. The phrase spread to general internet slang as TTRPG culture grew.
- First seen
- 1970s
- Confidence
- high
Cite this page
Use this stable URL to reference the entry.
https://slang.fyi/nat-1Updated: 2026-08-28License: CC BY 4.0