I understand that when you waive something you forego it or give it up. e.g.
I waive my [right to] free coffee.
I also understand that a waiver is a document stating that you waive your rights to something, but I read the phase waive off and I don't quite understand it.
The context was
personA: Live slugs!
personB: Waive off! Waive off! This is just a practice run!
I see that waive off means stop, or go away or something like that but I can't exactly put a specific meaning to it.
What does waive off mean?
Best Answer
The expression being used is wave off, not waive off.
This website from the Indianapolis Speedway explains it quite well:
If the context isn't auto racing (I assume it's not—what are live slugs doing in an auto race?), it's borrowed from auto racing, and has the same meaning.