Raucous Schoolies revellers are putting their lives at risk in the pursuit of a good time with footage emerging of one group lighting a friend on fire inside a hotel room.

In mobile phone footage sent to 9NEWS, a group of young men and women are seen congregating in a hotel room while soccer plays in the background.

A young man drinks a clear spirit straight from a glass bottle before dropping his pants and exposing his rear end.

He bends over in an attempt to demonstrate the effect of methane being excreted from his rear end on an open flame.

But when another man holds a lighter to his bum, liquid from an aerosol can is sprayed onto the open flame, causing it to ignite his backside.

A lighter was held to the boy's backside before another person in the room aimed aerosol liquid at it, igniting a short-lived blaze (9NEWS)

He then jumps on to a bed, screaming and curling into a ball.

His pain appears to be short-lived, as he breaks into laughter not long after the torching.

But this group weren't the only ones behaving badly last night.

Videos uploaded to Snapchat show rampant drug use at Surfers Paradise hotels this year.

In one video, a young man can be seen snorting a white powder.

In another, a group of young men are congregating on a balcony while one of them inhales from a bong.

One man is then seen drinking the brown-coloured liquid from the water pipe.

The increasing number of drug users at this year's Schoolies celebrations has been backed up by an increase in drug-related arrests.