A bagger is a person whose job is to put purchased items into bags at a grocery store or supermarket. When you finish checking out at the store, the bagger takes your groceries from the checkout counter and carefully packs them into paper or plastic bags, putting heavy items like milk at the bottom and delicate things like eggs or bread on top.

Working as a bagger is often a first job for teenagers because it teaches important skills: how to work efficiently, how to be helpful and polite to customers, and how to think ahead (like keeping cold items together or not putting sharp cans next to soft fruit). A good bagger works quickly but carefully, making sure nothing gets crushed and the bags aren't too heavy to carry.

The word can also refer to specific types of lawn mowers. A bagger mower collects grass clippings in an attached bag as you mow, instead of leaving them scattered on the lawn.

In informal speech, people sometimes use bagger as a suffix to describe something by the number of bags involved, like a two-bagger in baseball (a double) or a three-bagger grocery trip when you come home with three bags of food.