| Idiom | Meaning | Example |
| buckstop (military) |
brass marker placed on the wardroom table in a warship
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When Ken wants to be served he sits nearest the buckstop.
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| budding genius |
(See a budding genius)
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| buffalo |
frighten, bluff, intimidate
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The director shouts a lot, but don't let him buffalo you.
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| bug (someone) |
bother, irritate, get to me
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That scraping noise bugs me. It's quite annoying.
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| bugger all [B] |
nothing, diddly-squat, fuck all
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"Hey Giulio, what did you win?" "Bugger all -nothing!"
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| build a better mousetrap |
improve a common product
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If you're not an inventor, you try to build a better mousetrap.
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| build up |
increase, raise
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Talking with Rudy will build up your confidence. He's positive.
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| built like a brick shithouse [B] |
have a strong body, have a sturdy build
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Tyronne plays football. He's built like a brick shithouse.
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| bull in a china shop |
(See a bull in a china shop)
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| bull/bullshit/BS [B] |
a story that is not all true, balderdash
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His explanation is a lot of bull. Don't believe it.
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