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1 a small permanent flame on a cooking / heating appliance use to light a larger flame on demand

2 an antisocial person ( Never goes out)
See you down the pub on Friday. I dont suppose Billy will be there though, he's a proper Pilot light
by neil brown September 25, 2006
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to light pilot lights; to smoke crack

the term is derived from multiple crackheads on the block lighting up at night giving the appearance of pilot lights.

mentioned in the legit ballin album song 'stories' with twista.
"those ain't lightning bugs, those are hypes lightin pilot lights'
by wtf74 June 24, 2010
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