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all systems go

all systems go idiom

Everything is ready for proceeding, as in They've rented a hall and lined up the speakers, so it's all systems go for the rally. Originating in the late 1960s with reference to launching space missiles and vehicles, this expression has been transferred to general use.

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.