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a lonely little petunia in an onion patch

One who is out of place among those one finds unpleasant, uncouth, or overly aggressive. Taken from a 1946 song of the same name by Johnny Kimano, Billy Faber, and Maurie Hartmann. I'm feeling really uncomfortable in this rowdy sports bar, like a lonely little petunia in an onion patch.
See also: little, lonely, onion, patch

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 one's stuff

 and know one's onions
to know what one is expected to know. I know my stuff. I can do my job. She can't handle the assignment. She doesn't know her onions.
See also: know, stuff

know one's stuff

Also, know one's onions. Be experienced or knowledgeable in one's field or in the matter at hand. For example, Patrice knows her stuff when it comes to Mexican history, or We need a handyman who knows his onions. The allusion in the variant is unclear. [First half of 1900s]
See also: know, stuff

know your onions

If 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
References in periodicals archive ?
Waheed Ahmad said that, 'growers of Sindh would certainly be unable to get good prices of their onion crops leading to financial losses.
However, they have also viewed that the production of onion crops was decease to 40% in Balochistan due to the lack of routine rains in the Balochistan province.
Keep areas near onions mowed to reduce the weedy habitat that onion thrips (Thrips tabaci) prefer.
But a succession of problems has been plaguing onion growers.
Delightfully versatile, the onion performs as both spice and vegetable, pepping up any dish from guacamole to veggie sautes and whole grain side dishes.
What's more, Vidalia onions account for 62 percent of sweet onion dollar sales and 22 percent of total onion dollar sales.
IMARC's latest study "Onion Powder Manufacturing Plant Project Report: Industry Trends, Manufacturing Process, Machinery, Raw Materials, Cost and Revenue" provides a techno-commercial roadmap for setting up an onion powder manufacturing plant.
As temperatures rise, I notice browning at the tips of my onion tops.
Turkey meatball and onion kabobs, an opened face onion and sirloin burger and the USA Onions' special onion and avocado dip are just a few of the recipes that are now available for the big game.
Both factors are likely to cause onion scarcity from September 15 to October end this year.
To make homemade onion powder, start with 2 pounds of organic onions from your garden or local farmers market.
Camacho believes that in expanding their plantation area and overcoming irrigation challenges, Bayambang's onion farmers can produce a steady supply of export-quality onions more than enough for their local market.
Muscat: Spiralling onion prices in India have forced traders here to curtail imports, traders claimed.
Delhi CM says she managed to have onion only after a week