(adj.) a term used to describe somebody who does something which makes everyone else look bad or not as high achieving, thus upstaging ‘everyone else.
“That project really spoilmrkt!”
Also read: “market spoiler” - one who outperforms his/her peers in any situation, in essence, making everyone else look bad.
(v.) used in economics to describe an event which disrupts market forces that influence natural movement of supply and demand.
“Spoil the Market”.
(n.) What your brand will do in its industry.