I came upon a boiler wallowing in the grass, then found a path leading up the hill.
There are no more uses of "wallow" in the book.
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Within the court, around their father, sat His sons, their raiment all bedew'd with tears; And in the midst, close cover'd with his robe, Their sire, his head and neck with dirt defil'd, Which, wallowing on the earth, himself had heap'd, With his own hands, upon his hoary head.
Homer -- The Iliad
Thus were they penned there weeping, and Circe flung them acorns and mast and fruit of the cornel tree to eat, whereon wallowing swine do always batten.