Miles: (While wedging a chair under the door and trapping Lily in the bathroom.) Welcome home you traitorous Hobbit!
Hobbits allude to a race of 'Little People' created by J.R.R. Tolkein, and made famous first in his series of books, and then on a MUCH larger scale with the Lord of the Ring trilogy. They are generally described as short, stout, and hairy, which areall attributes that Miles has attributed to Lily, thoughwith slightly different wordings.