The word “catchall” is a noun that refers to a category or item that is used to encompass a wide range of different things or that serves as a general term for various items or concepts that don’t fit neatly into specific categories. It can also refer to a generalized or inclusive provision, rule, or phrase that covers multiple scenarios. In informal contexts, it can describe a container or space in which miscellaneous items are stored.
For example, in a conversation, one might say, “We created a catchall category for all miscellaneous expenses.”