DNF means: A failure to finish something, such as a sporting event.. It has drug-related associations; worth a calm conversation about which side of the topic your teen is on. It is sporting vocabulary and harmless in itself. If your teen uses it, context will usually make the intent clear. A short, curious question about where they heard it is usually all that is needed to know whether to follow up.
DNF
A failure to finish something, such as a sporting event.
Definitions
UK
#1·Apr 26, 2026UK
A failure to finish something, such as a sporting event.
For parents
DNF means: A failure to finish something, such as a sporting event.. It has drug-related associations; worth a calm conversation about which side of the topic your teen is on. It is sporting vocabulary and harmless in itself. If your teen uses it, context will usually make the intent clear. A short, curious question about where they heard it is usually all that is needed to know whether to follow up.
For ESL learners
DNF means: A failure to finish something, such as a sporting event.. Register: very informal, often derogatory or vulgar. Avoid in formal, business, academic, or polite writing. Even in casual speech the word can offend and is best left out of a learner's active vocabulary. A common learner mistake is using the word in a register it does not fit, or assuming a single global meaning; native speakers immediately notice when slang appears in formal contexts, so always check the surrounding register before producing it yourself.
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UK
#2·Apr 26, 2026UK
To fail to finish, as a sporting event or a piece of media.
While I used to love them, now I keep DNFing superhero movies.
Cluster: fail
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For specific readers
Why is this section here?
Slang is read by different audiences for very different reasons. The For parents view re-explains the term in plain, non-judgemental language so a caregiver can understand what their child means without needing the surrounding subculture. The For English learners view focuses on register (when it's safe to use), formal alternatives, and common mistakes — what a textbook won't teach you.
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UK
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Other words near "DNF" (D)
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