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Know Your Onions Cockney Rhyming Slang


Know Your Onions is Cockney rhyming slang for be very knowledgeable.

💬 “My accountant really knows his onions.“


👍 Classic
2
👍 Modern
0
👎 Mockney
0

First submitted by Anon on May 20, 2012.

More slang beginning with K