be on (one's) say-so(redirected from be on their say-so)
be on (one's) say-so
To be dependent on or happen according to one's authorization or permission. Yes, I'm the manager of this department, but any big changes are on the general manager's say-so. We're going to start transferring the funds into the new account after all. Don't look at me like that—it was on the CFO's say-so.
See also: on
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.