a tough-skinned terrestrial mollusk that typically lacks a shell and secretes a film of mucus for protection. It can be a serious plant pest
a shell-less marine mollusk that is typically brightly colored, with external gills and a number of appendages on the upper surface
a pellet containing a substance poisonous to slugs, placed among growing plants to prevent them being damaged
a tough and challenging contest, especially in sports such as boxing and baseball