MARPLOT

PRONUNCIATION: (MAHR-plot)

MEANING: noun: A meddlesome person who spoils a plan by interference.

ETYMOLOGY: After Marplot, the titular character in the 1709 play The Busy Body by Susannah Centlivre (1669-1723). Marplot means well and tries to help only to get in the way of others and foul things up. Earliest documented use: 1709.
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FARPLOT - by stereotype, the North Forty

OMARPLOT - the Rubáiyát Conspiracy

MERPLOT - factions in the French Navy are up to something