Traditionally meaning "total idiot", duffer is a mashup which translates to "dumb fucker." Generally viewed as an
appropriate term for elderly people who make absolutely zero sense to a rational person attempting to
understand their reasoning for doing
what they do.
"Why is there a brake drum in the dish drainer?" "
I don't know. Ask Duffer. It's his house"
Upon seeing shredded bits of
garden hose scattered across the yard, it's safe to assume duffer ran another one over with the
lawn mower.