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Classic usage
Reading level: hard
Estimated CEFR level: B2 — Upper-Intermediate
Estimated from word frequency; not an official CEFR classification.
Etymology unknown. Often incorrectly thought to be Cockney rhyming slang from Barney Rubble (“trouble”, from the character Barney Rubble on The Flintstones), it actually dates back to the 19th century and its origin is unknown.
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Classic usage
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