Marplot is a word used to describe a person who is always interfering in other people's affairs or plans, and who often causes problems or confusion. Some synonyms for this word include meddler, busybody, troublemaker, pest, nuisance and interferer. Other words that have similar meanings include gossiper, tattler, snitch, and back-stabber. Each of these words describes someone who enjoys spreading gossip or causing trouble for others. Regardless of the exact term used, it is always important to acknowledge the negative impacts that individuals who engage in such behaviour can have on others and their wellbeing.