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up on

up on someone or something

Fig. knowledgeable about someone or something. Ask Tom about the author of this book. He's up on stuff like that.
See also: on, up

Common Names:

NameGenderPronouncedUsage
Nixon['niksn]
Girisha-Hinduism
Merrion-Welsh
Ramesha-Hinduism
Alidaah-LEE-dah (German)Dutch, German, Hungarian
Raginmund-Ancient Germanic
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