know (one's) beans

know (one's) beans

To be knowledgable about and/or very familiar with something. I had no idea you were such a good piano player—you really know your beans!

See also: bean, know

Common Names:

Name	Gender	Pronounced	Usage
Angie		AN-jee	English
Deborah		['debərə]
Washti		-	Biblical Hebrew
Haley		HAY-lee	English (Modern)
Kyung		gyung	Korean
Marlene		['mɑ:li:n]

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