in the pipeline


In process, under way, as in The blueprints for the new machine are in the pipeline, but it will take months to get approval. [Colloquial; 1940s] Also see in the works.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.