up on something, be
be up on (something)
To have the most current knowledge about a particular subject or issue; to be up to date on (something). Make sure you're up on this account before our meeting tomorrow morning. I'm not too up on the policy changes happening this year—is there a reference guide I can consult?
See also: on, up
Farlex Dictionary of Idioms.
up on something, be
Be well informed or up-to-date about something, as in I'm not up on the latest models of cars. [Colloquial]
See also: on, up
The American Heritage® Dictionary of Idioms by Christine Ammer.
- have a working knowledge of (something)
- have a working knowledge of something
- to (one's) knowledge
- to your knowledge
- to the best of (one's) knowledge
- knowledge
- (Don't ask me,) I just work here.
- (Don't ask me,) I only work here.
- pull the strings
- be on the same page