I have no idea what the game is called, but remember playing it at brownies and guides and more recently at a hen party & have to admit it works really well as an adults game too.
Think you'll know it as I attempt to explain it.
You will need - 2 Dice, Fork & knife, chopping board, large bar of chocolate, Hat, gloves, scarf and msc items of clothing.
You roll the dice and when someone throws a double - they are in.
This person has to put on all the clothes, pick up the knife and fork and attempt to cut a square of chocolate off the large bar.
If they are successful they can keep on going to a 2nd square etc.
The turn ends when someone else throws a double - which means they drop what they are doing and quickly take off the clothes so the person's whose go it is can get 'dressed' - this bit can be pretty hilarious and gets very funny with a few people have had a drink or small children are involved.