# bosh

/ˈbɑʃ/ (US) · /bˈɒʃ/ (UK)

Source: https://englishreference.com/word/bosh
Updated: 2026-08-27

## Senses

### 1. nonsense

noun · CEFR C1 · British English · Informal

silly talk or ideas that do not make sense.

For teachers: nonsense; foolish or empty talk. Uncountable in this sense.

- Don't listen to him, he's just talking absolute bosh.
- The critic dismissed the entire manifesto as sentimental bosh, arguing that it lacked any grounding in economic reality.

### 2. done quickly

interjection · CEFR C2 · British English · Slang

something you say when you finish a job very fast and easily.

For teachers: an exclamation used to indicate the speedy and successful completion of a straightforward task.

- Just click this button, enter your code, and bosh—you're finished.
- You just apply the sealant, wait five minutes, wipe it down, and bosh, the leak is fixed for good.

### 3. to consume drugs

verb · CEFR C2 · British English · Slang · Vulgar

to take illegal drugs.

For teachers: to ingest or consume illicit substances, particularly in a recreational context.

- He spent the whole weekend boshing pills at the club.
- The documentary explored the dangers of young people boshing unknown substances at unregulated music festivals.

### 4. part of a furnace

noun · CEFR C2 · Technical

a specific part of a large oven used for melting metal.

For teachers: the sloping part of a blast furnace between the hearth and the stack.

- The engineers had to repair the lining of the bosh before the furnace could be restarted.
- Molten material descends through the bosh, where it undergoes further chemical reduction before reaching the hearth.

## Examples

- Don't listen to that bosh; he is just trying to trick you.
- The politician's claims about the economy were pure bosh, as the actual data showed a clear decline.
- While the conspiracy theory gained traction online, most experts dismissed the entire narrative as bosh, citing a lack of credible evidence and logical inconsistencies.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.