Tupperware is a term for a type of container that has an inside lid.
Tupper ware is a label or label holder that contains a label and a shelf.
Tupping is when a container is left unattended, in a box or cabinet.
The term refers to a container that is left on the counter or shelf and is not being used.
Tuppers are often used in retail settings to describe the use of the products inside a TupperPak or TupperWash container.