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to have it on lock
01
to have complete control, mastery, or confidence over something
Slang
What does "to have it on lock" mean in slang?
The phrase "to have it on lock" means to have something fully under control, secured, or mastered, leaving little to no risk of failure. The structure is a metaphor where "lock" implies something is securely fixed or controlled. It is informal slang commonly used in everyday speech, sports, and work contexts to describe confidence in handling a task, skill, or situation effectively.
Examples
She has it on lock when it comes to project management.
