fatty

adjective, fat·ti·er, fat·ti·est.

1. consisting of, containing, or resembling fat: fatty tissue.
2. Pathology. characterized by overproduction or excessive accumulation of fat.

noun, plural fat·ties. Informal.

1. Disparaging and Offensive. a person who is overweight or obese (sometimes used as a term of address).
2. a large marijuana cigarette, often shared and consumed by a group, with a shape and size similar to a cigar.

adjective -tier or -tiest

1. containing, consisting of, or derived from fat
2. having the properties of fat; greasy; oily
3. (esp of tissues, organs, etc) characterized by the excessive accumulation of fat

noun plural -ties

4. informal a fat person

adj.

late 14c., from fat + -y (2). As a name for a fat person, attested by 1797 (with -y (3)).

n.

1. Containing or composed of fat.
2. Characteristic of fat; greasy.
3. Derived from or chemically related to fat.