For a long time, the word has been used as slang for 'gun' along with a multitude of other terms such as heater, piece, strap, etc.

In more recent times certain film and TV shows have portrayed the word as slang for a disposable cell phone, however in the real world the word is almost never used in such a context.
1) I got a burner on me and I swear to god I'm ready to shoot it at someone.
by PlaceLondon July 04, 2016
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1. Something worth keeping.
You heard that new Pastor Troy? Oh yeah number three is a burner.

I like your new chick, she's a burner
by elle belle February 05, 2005
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