Getting high on food? Sounds a bit silly! Chasing the dragon is an expression for chasing a heroin high! Were you high when you wrote this because it doesn't make sense dude!
I believe chasing the dragon is smoking heroin or meth.but anyways,smoking food is pointless.Your probably just desperate for a buzz or your just dry.Its a waste and the carcinogens kill brain cells and hurts you lungs.