The Grumple (also known as Grumpy Groo) is a green, hairy humanoid. He threatened to steal all of the Holiday cheer of the Winter Holidays in the Krusty’s Kristmas on Ice show. The Grumple has been known to stand outside houses, holding a knife and proclaiming "Grumpily Grumpily Groo! Your blood will make my stew!". The Grumple has since found the joy of Christmas and now sings Chistmas carols; "Grumpily Grumpily Groo! We would like to spend Christmas with you!". The Grumple is a confirmed fan of Lady Gaga.