all systems go

Idioms & Phrases

all systems go

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 © 1997. Published by Houghton Mifflin.
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