If something is shaggy, it has long, untidy hair or fur.
Shaggy can make people think of animals, like dogs or bears, or of people with long, messy hair.
Examples:
The shaggy dog ran through the yard.
She has a shaggy cat at home.
The shaggy rug was soft to sit on.
I saw a shaggy bear in the forest!
The shaggy monster in the movie was very scary.
My uncle has shaggy hair and a big beard.