The term 'blobby' is a slang term used to describe an AMOEBA, which is a single-celled organism that can change its shape. It is made up of a jelly-like substance and has no definite form. Amoebas are found in many different environments, from freshwater to saltwater, and can be beneficial or harmful depending on the species. They are also capable of reproducing asexually, meaning they can divide into two identical cells without the need for a partner.