The after-effects of a skittery shit post-curry eating. The skin around the anus becomes hot and nippy. The sufferer feels extreme fear of the pain if they need to revisit for a second round of skitters.
Man has just left local curry house and has partaken a VERY hot Vinda Loo! He has been in the loo for about half an hour and shouts to his wife "I'm neva goin Indian again i have a ring of fire!!!"