on request

on request

Whenever one requests or demands something. Our client reserves the right to withdraw the license to use our her writing in your anthology on request.
See also: on, request
Farlex Dictionary of Idioms.

on request

When asked for, as in The agreement states that the rights on this book revert to the author on request. [c. 1800] Also see by request.
See also: on, request
The American Heritage® Dictionary of Idioms by Christine Ammer.
See also:
  • as, whenever, etc. the fancy takes you
  • whenever the fancy takes (one)
  • come on over
  • brain dump
  • clean up after (someone or something)
  • dote
  • dote on
  • dote on (someone or something)
  • dote over (someone or something)
  • drop in