The act of an aggressive competition that results in one company taking portions of another company’s market share. Market share is the percentage of an industry or market’s total sales that is achieved by one company during a specified time period. A more aggressive company “eats the lunch” of another company when it take some of its competitor’s market share. This can be achieved through the release of a better or newer product, aggressive pricing or marketing strategies or other competitive advantages. When these strategies result in one company having a bigger market share for a particular product or service, the company enjoying the larger market share is said to be eating someone’s lunch.
Eating someone’s lunch generally refers to defeating or outwitting an opponent. In the business world, it describes situations where one company outperforms another and earns a larger market share. Eating someone’s lunch is considered a necessary component of a competitive market, and may help bring better pricing and services to consumers as companies compete for larger market shares. A company may eat someone’s lunch at one point in time, only to have their own lunch eaten during a subsequent time as competitors fight back for market share.