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Definition of All systems go
1. Interjection. (context: aerospace slang) "Everything is ready"; originally used in the aerospace industry to indicate preparedness to launch. ¹
¹ Source: wiktionary.com
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1. Interjection. (context: aerospace slang) "Everything is ready"; originally used in the aerospace industry to indicate preparedness to launch. ¹
¹ Source: wiktionary.com