Pupil : coff.
Coff is still used in some parts of the North East of Scotland most predominantly in Dingwall and Muir-of-Ord (The Muir) usually following "gudgie" (a short stout fellow J. Jamieson, 1840) but today refers to any type of man "gudgie-coff" or just "coff"
The historical use of gudgie-coff may have referred to a fatman who was buying or purchasing something in the market towns of Dingwall and Muir of Ord but this is unproven. Nevertheless, there are certainly plenty fatmen purchasing things still today in Dingwall at the local Tesco.
"Not much mun"