This is a term used to refer to girls who love a dirty sesh. One may result to taking several disco biscuits and meet up with mandy before she has even curled her hair for the sesh. She doesn't mind though because shes too fucked on a mad sesh to care whether her hair is even curly.

she can often be found on nights out admiring girls who curled their hair before getting on a mad sesh.

when you're hungover as shit after a spending a night drunk as a skunk