bosh

¹ American  

[bosh] / bɒʃ /

noun

1. absurd or foolish talk; nonsense.

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bosh ² American  

[bosh] / bɒʃ /

noun

Metallurgy.

1. the section of a blast furnace between the hearth and the stack, having the form of a frustum of an inverted cone.

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bosh ¹ British  

/ bɒʃ /

noun

1. the lower tapering portion of a blast furnace, situated immediately above the air-inlet tuyères

2. the deposit of siliceous material that occurs on the surfaces of vessels in which copper is refined

3. a water tank for cooling glass-making tools, etc

4. dialect a kitchen sink or wash basin

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bosh ² British  

/ bɒʃ /

noun

1. informal empty or meaningless talk or opinions; nonsense

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Etymology

Origin of bosh¹

1830–35; < Turkish boş empty; popularized from its use in the novel Ayesha (1834) by British author James J. Morier (1780–1849)

Origin of bosh²

1670–80; probably < German; akin to German böschen to slope, Böschung slope, scarp

Example Sentences

See Examples For:

bosh

However, to "bosh" is what she reckons the correct terminology is.

From BBC ● May 9, 2026

Fisher - who is famous for his love of Chinese takeaway and his signature catchphrase "bosh" - arrived in Western Australia on Tuesday ahead of a tour of the country.

From BBC ● Oct. 14, 2025

Think of all the Lean in 15 recipes you could bosh while that’s on in the background.

From The Guardian ● Nov. 19, 2018

"I think it's a bunch of bosh," said Wallace Broecker, a professor at Columbia University.

From Washington Post ● Sep. 28, 2009

‘Why, it’s absolute bosh from beginning to end.”

From "The Magician's Nephew" by C. S. Lewis

Related Words

• drivel
• gibberish