Wikipedia
The lubber fiend, Lob, lubberkin, lurdane or Lob Lie-By-The-Fire was a legendary creature of English folklore that was similar in attributes to the " brownie" (or "Urisk") of Scotland and northern England, the " hob" of northern England and the Scottish Borders, the Slavic " domovoi" and Scandinavian " tomte". It has been related also to Robin Goodfellow, and Hobgoblins. It is best known for being mentioned by John Milton. It is generally connected with the north of England.
He is typically described as a large, hairy man with a tail, who performs housework in exchange for a saucer of milk and a place in front of the fire. One story claims he is the giant son of a witch and the Devil.
He is a very similar figure to Robin Goodfellow, a.k.a. Puck.
The abbey lubber is a minor devil that haunts the wine cellars or kitchens of abbeys, tempting the monks into drunkenness, gluttony and lasciviousness. The best known abbey lubber tale is that of Friar Rush.
Usage examples of "lubber fiend".
Those who do not eat 12 pies are supposed to be plagued by the Lubber Fiend -- a goblin somewhat vaguely identified by folk-lore specialists.
He is the lub, the lubber fiend, and sometimes he plays at being the nut-brown house-sprite for whom a bowl of milk is left outside the door, although, if you want to be rid of him, you must leave him a pair of trousers.