A "leecher," often referred to as a "freeloader," is someone who takes advantage of resources or services without contributing anything in return. This term is commonly used in the context of file sharing, where individuals download content without sharing their own files. Leecher behavior can lead to an imbalance in the community, as it relies on the generosity of others to maintain the availability of shared resources. In broader contexts, leechers can be found in various social situations, such as friendships or group activities, where they benefit from others' efforts without reciprocating. This behavior can create frustration among those who contribute, leading to potential conflicts and a breakdown of trust within the group.