What is a Macnab in the sporting world of shooting fishing etc?

Answer 1

WWGS... what would google say?

according to Fish and Fly magazine its....
"Which is strange because the original McNab occurs in a John Buchan novel set after the First World War when three successful but jaded businessmen set themselves the challenge of poaching game from neighbouring estates, having warned the owners of their intention. "

Answer 2

Dont know if this is the answer. In the book John Macnab by John Buchan he was a poacher. The book is a good read.

Answer 3

a sandy macnab is cockney rhyme for crab.