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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
LeytonLAY-tənEnglish (Rare)
BenedictBEN-ə-diktEnglish
Kristupas-Lithuanian
LoesLOOSDutch
Hrodohaidis-Ancient Germanic
Fernandefer-NAWNDFrench
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