i Register
In some senses, marplot is marked as archaic. Watch for register when choosing this word.
noun
A meddlesome person whose activity interferes with the plans of others.
“The old marplot has discovered the baby,” Monica whispered. “I suppose it cried and woke him up, and now he thinks he's witness to a miracle.”
Several classical texts relate that the mighty god Kung Kung (Common Work) [translating 共工 (Gònggōng)] plays the mythic role of the marplot, that is, one who seeks to destroy the cosmos.⁴¹ Chapter Three of Huai-nan Tzu [translating 淮南子 (Huáinánzǐ)], for example, narrates how the rebellious Kung Kung fought with the sky god Chuan Hsü [translating 顓頊 /颛顼] for world domination and in his titanic fury Kung Kung broke one of the supports that separated the sky from the earth.⁴²
adj
That foils a plot; interfering.
Let us argue the point with this pert, unruly, marplot conscience of mine…