Light It Up
Verb Phrase · Slang & Abbreviations
Definitions
To turn something on, activate a feature, or launch visibly and energetically. In engineering slang, 'light it up' often carries a sense of flipping from quiet preparation into live operation.
In plain English: To switch something on or launch it visibly.
Example: "They waited until dashboards were stable before deciding to light it up for all tenants instead of just the canary cohort."