Idioms and Phrases with out with it
out with it
Say it, as in Tell us what you really think—out with it! Used as an imperative, this idiom uses out in the sense of “public.”
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.