know your onions

know (one's) onions

To be very knowledgeable or skilled in some area. Primarily heard in UK, Australia. I think Nicole is our best candidate for the job—when it comes to corporate accounting, she really knows her onions.See also: know, onion

know your onions

BRITISH, OLD-FASHIONEDIf you know your onions, you know a lot about a particular subject. She really knows her onions in the historical field. Note: This may derive from the rhyming slang `onion rings', meaning `things'. See also: know, onion

know your onions

be fully knowledgeable about something. informal Onions is perhaps short for rhyming slang onion rings , meaning ‘things’. The phrase dates from the 1920s.See also: know, onion

单词	know your onions
释义	know your onions know (one's) onions To be very knowledgeable or skilled in some area. Primarily heard in UK, Australia. I think Nicole is our best candidate for the job—when it comes to corporate accounting, she really knows her onions.See also: know, onion know your onions BRITISH, OLD-FASHIONEDIf you know your onions, you know a lot about a particular subject. She really knows her onions in the historical field. Note: This may derive from the rhyming slang `onion rings', meaning `things'. See also: know, onion know your onions be fully knowledgeable about something. informal Onions is perhaps short for rhyming slang onion rings , meaning ‘things’. The phrase dates from the 1920s.See also: know, onion
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