nod is as good as a wink to a blind horse

nod is as good as a wink to a blind horse

Prov. You cannot get people to take a hint if they are determined not to. Jill: I keep hinting to the boss that I deserve a raise, but he doesn't seem to get the point. Jane: I'm not surprised. A nod's as good as a wink to a blind horse.
See also: blind, good, horse, nod, wink