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:

NameGenderPronouncedUsage
Townsend['taunzənd]
Irving['ə:viŋ]
HayleighHAY-leeEnglish (Modern)
Steinn-Ancient Scandinavian
Sabriyya-Arabic
Hallvar&Eth;R-Ancient Scandinavian