brief (one) on (someone or something)(redirected from briefing him on)
brief (one) on (someone or something)
To tell one key information about someone or something, especially some imminent issue or situation. Please brief me on the candidate that I'll be interviewing this afternoon. Someone needs to brief the CEO on the investigation before he speaks to the media.
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.