When you get a can of dip(smokeless tobacco), and literally line your mouth with it. It should take no less than half a can of dip.

When you put it all in your mouth, it feels like a ring of fire around your mouth.

It is said that you can't successfully do it without throughing up.

the act of sprinkling hot sauce on male sex organs (preferably asian) while the woman proceeds to suck and starts coughing until the male ejaculates a zesty fire cum down the females throat so she breathes fire from her mouth for a week resembling a dragon

When a girl gives a guy a blowjob with ice in her mouth and at the same time rubs his balls with RUB-A535.

immmediately following ejaculation during oral sex, a man covers a womans mouth and punches her in the stomach, causing the ejaculate to be expelled through the nasal passage. it appears that she has magically transformed into a medieval beast. this is only to be performed by brave knights. (see also: smoking dragons breath)

Fire Water is whiskey. To the drinker, whiskey will seem to burn the mouth. If it doesn't burn, tis terrible and probably a product of some American/British corporation.

A salivary excretion resulting from the smoking of marijuana. A sore throat through hallucination creates an intensely HOT feeling saliva that burns and requires one to spit excessively. A new form of cotton mouth

You put a ring of salsa around your dick near the end so she doesnt see it, and when she sucks it she her mouth is on fire.