know onions



know your onions

  (British & Australian humorous)
to know a lot about a particular subject That car salesman certainly knew his onions, didn't he?
See also: know, onion

Common Names:

NameGenderPronouncedUsage
Suchart-Thai
Colby['kəulbi]
Ctirad-Czech, Slovak
Yelyzaveta-Ukrainian
Elvira[el'vaiərə]
Venceslaus-Medieval Czech (Latinized)