It is the giggles coming from three or more girls playfully "scrapping" with one another! LOL! Think of a pillow fight at a slumber party.
Urban dictionary :
Facial hair in the stage between stubble and a beard.
Dave hasn't shaved in two weeks, he's covered in scraggle. Or ?

Weeds. No matter ho hard I try my flowerbed is full of scraggles.
The world would be a sadder place without scraggles. They are the left-over veg that gets fried up as bubble and squeak.
