Fatty a. : Containing fat, or having the qualities of fat; greasy; gross; as, a fatty substance.

Example:
How do Fatty people manage to take a dump on the plane considering it is so restricted in space?

Taxonomy
fats, fatty acids, carbon atoms, body, molecule, chain, saturated fats, Adipose tissue, double bond, room temperature, substances, hydrogen atoms, glycerol, lipids, animal fats, adipocytes, chemical structure, Trans fats.

Defination from the web:
fatty acids. ... A fat's constituent fatty acids may also differ in the number of hydrogen atoms that are bonded to the chain of carbon atoms. ... This results in an "unsaturated" fatty acid. ...