Duffer — Defs

01 n. A peddler or hawker, especially of cheap, flashy articles, as sham jewelry; hence, a sham or cheat.

1.
A peddler or hawker, especially of cheap, flashy articles, as sham jewelry; hence, a sham or cheat.[Slang, Eng.]
2.
A stupid, awkward, inefficient person.[Slang]

02 n. See Shicer.

03 n. One who duffs cattle, etc.

1.
One who duffs cattle, etc.[Australia]
“Unluckily, cattle stealers are by no means so rare as would be desirable; they are locally known as duffers.” — Baden-Powell.