I wrote this question in a funny and entertaining way, if you want to go straight to the question go to the end.
Last day I was in a bar with some friends and they were talking about soccer (for which I have zero interest) so I started looking around the decoration and saw a neon light with the sentence:
A little party never killed nobody
The You had one job
meme automatically appeared in my mind and I though they probably ordered a custom made neon with an incorrect sentence on it.
A quick search however revealed me that there's a song with that title and there exist neon lights with that sentence, so it was not custom made (this doesn't mean the sentence is correct, but at least it's not just this bar to be blamed, so the owner will avoid the walk of shame for now)
So my question is: Is it correct to say A little party never killed nobody
? To me the double negation means that it actually did kill somebody (which maybe is a humor hidden message the sentence tries to transmit)
Is the sentence having a hidden meaning? A poetic license? Or is just plain wrong English?