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1.
A naive university student who works at a greenhouse over the summer between semesters, unaware of what a 'hoser' is, thus causing all his friends to break out into an uncontrollable fit of laughter.
Dave R.: "I got a new nickname this summer, my boss calls me a garden hoser."

(Friends laugh)

Dave R.: "What? What's so funny?"
by marcuspolacus October 16, 2010