dilate on

dilate on (something)

To discuss or write about something at length. I think you need to dilate on this point because it's so important to your argument.
See also: dilate, on
Farlex Dictionary of Idioms.

dilate on something

Fig. to speak or write in great detail on some subject. I am sure you do not wish me to dilate further on this matter. If you do not see my point, I would be pleased to dilate on this matter further.
See also: dilate, on
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • dilate
  • dilate on (something)
  • a vexed question
  • chew over
  • chew something over
  • arm's length
  • work (someone or something) up into (something)
  • work oneself up into
  • work up into
  • hold at