duffer:
(plural: ‘duffers‘; pronunciation: the letter ‘u’ rhymes with the letter ‘u’ in the word “but”)

a duffer, dull-witted and uninteresting
an old foolish person;
a dull-witted or uninteresting person;
a slow learner;
an inexperienced or clumsy player in a sport, especially golf;
a person who sells cheap things moving from place to place; a peddler;
(in Australia) a cattle thief,

a duffer at golf
Katrina was greatly disappointed when she learned that she was to pair with Khamis in the quiz contest because he was a duffer and a loser.
Though she is an excellent swimmer, she is just duffer at basketball.
When he first came to the city, Nicholson started his life as a duffer, selling cheap articles and hand-made toys, but, with his business acumen and hard work, he gradually built a multimillion dollar toy factory!
In Australia, duffers are punished severely once they are caught; however, there are still cattle mustering and nobody knows who the next duffer will be.
There are duffer in every field: there are duffers in sports, there are duffers in business, there are duffers in crime and there are duffers in politics!

a duffer, selling cheap article
for an article that explains the usage of this word in golf game, please click here,
for an advertisement that shows us how we encounter this word in our daily life, please click here,
for a news interview in which a politician terms himself as a duffer, please click here
and
for another item of news that uses duffer to refer to some politician, please click here.
