The French-Japanese Ocean Dictionary shows "scorpe" as a real word. Unfortunately I'm not equipped to see the Japanese part of the entry. There is a "lookback" in a nearby definition, with a reference to "scorpion de mer."

As the usage seems to refer to a "place" as opposed to a "thing," referring to a water-scorpion (beast or boat) seems a stretch. A woodworking tool (more commonly scaup in the US, I think) seems also unlikely.

Isle of Man Historical document refers to a Sir William Le Scorpe, so we might ask his heirs:

Sir William de Montecute was granted the Island in absolute possession in 1333, and it was inherited by his son, the second Earl of Salisbury, in 1344. In 1392, exercising his absolute right of ownership, Sir William Montecute II sold the Island and its crown to a supporter of Richard II, Sir William Le Scorpe, who on the accession of Henry IV in 1399 was beheaded, leaving the Island in the hands of the English crown again.

The majority of hits on a net search for the word alone appear to be "fantasy-gamer" sites, which would be unlikely to use a traditional meaning of any word not commonly used by infants (tongue in cheek?).

John