Meaning
Murder — and, in dancehall, an exclamation of extreme excitement and approval. When a tune 'buss' and sets the dance wild, the crowd shouts 'murda!' or 'murderation!' to mean it's a smash, a killer. As a verb, to 'murda' a performance is to do it brilliantly.
Examples
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Di tune buss an di crowd shout 'murda!'
The tune dropped and the crowd shouted 'murder!' (killer!).
-
Him murda di stage last night.
He killed it on stage last night.
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Dat riddim a murda!
That rhythm is a killer!
Origin
The Patois pronunciation of 'murder'; the dancehall exclamation extends it to mean 'a killer / a smash hit', much like English slang 'that's murder/sick'.
How it’s used
Literal 'murder', but in dancehall an exclamation of hype ('murda!', 'murderation!'). Context decides.