coach up
verb1
To coach; to instruct.
- "Someone said it was Mrs. Debbs' first visit." "Yes but they could easily coach her up.1925 July – 1926 May, A[rthur] Conan Doyle, “(please specify the chapter number)”, in The Land of Mist (eBook no. 0601351h.html), Australia: Project Gutenberg Australia, published April 2019: