To set fire to ones flatulent gassy fart. Can be done alone or as a party piece. If done with a crowd of mates a competitive element may arise to see who can burn off the longest flame.
"Quick, Lend me your lighter" said Andrew, "I've been on the baked beans, sprouts and Guinness again so stand well back while I burn one off".
a curry so spicy people think there face is melting while they are eating it.
went to an indian restaurant last night to have a mild curry and it turned out to be a burn your face off curry had a beer and 2 litres of milk to cool me down.
1). A burnoff happens when someone revs up a car motor while applying the brake, the engine at high revolutions per minute, and releasing the brake. The result is both wheels violently turn and often smoke as the heat from the tires literally burns the rubber off the tires. As the car travels down the road there is a tell tale set of blackish tire marks on the roadway in its wake.
2). A burnoff is found in someone's underwear and resembles the burning tire marks found on streets after races.