Marplots [noun]

I'm sorry to be such a marplot, but you can take it out in quizzing me after I'm gone.

Marplot, an officious bungler, who spoils everything he interferes with.

Our only marplot has been laid by the heels at the very nick of time.

Did Ralston know that he had been considered a sort of marplot?

“And I have been the marplot to spoil this merry company,” said Mr. Owen contritely.

Oh my heart; why was I doomed to be the Marplot of his life?

I did not wish to be a killjoy and a marplot, or I would have forbidden Fred to touch a foot-ball after he entered college.

"I must be a Marplot no more," whispered Margaret to her humble friend, with a weary sigh.

Laura had stayed at home to finish a comic sketch of a village episode for the Monthly Marplot.

Holding fast to these beliefs, Cimarron Bill rode forth full of an unconscious willingness to play the marplot.