The best candy bar in the world, but it isn't available in the USA. Sort of a cross beween a kitkat and a snickers, with wafers and caramel in chocolate.
Someone or something that bites your ankles.
To a postman, an ankle biter is often known as a dog.
To an adult, an ankle biter may be a toddler.
To hikers, an ankle biter is sometimes a tick.
And so on.