Herkimer Jerkimer noun1 •(slang, offensive) A yokel; a country bumpkin.Herkimer Jerkimer, a fool, a rustic, is a "jerk from Herkimer," an impossibly remote place. This jerk was, presumably, from his upstate hometown of Herkimer, New York, ZIP code 13350. — 1995 formsHerkimer Jerkimers