Squirrelling, or hoarding, can be a common behavior in both humans and animals. Other synonyms for squirrelling include stashing, stockpiling, storing, collecting, and accumulating. These words can be used to describe someone who is saving money, gathering belongings, or gathering resources for a future event. The term squirrel away is also frequently used to describe hiding or keeping something in a safe place. While squirrelling can have negative connotations, such as hoarding unnecessary items, it can also be a smart and responsible way to plan for the future.