fatty

¹

[fat-ee]

adjective

fattier, fattiest 

1. consisting of, containing, or resembling fat.

   fatty tissue.

2. Pathology.,  characterized by overproduction or excessive accumulation of fat.

fatty

²

[fat-ee]

noun

Informal.

plural

fatties 

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.

fatty

/ ˈfætɪ /

adjective

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

1. informal,  a fat person

Other Word Forms

• fattily adverb
• fattiness noun

Word History and Origins

Origin of fatty¹

Middle English word dating back to 1350–1400; fat, -y ¹

Origin of fatty²

First recorded in 1790–1800 fatty ² ( def. 1 ); 2003 fatty ² ( def. 2 ); fat, -y ²

Example Sentences

Using a fluorescent heat sensor they developed, the researchers found that when ACOX2 metabolized certain fatty acids, brown fat cells got hotter.

Read more on Science Daily

Hegseth said the military must be a place where there are “no fug-ups, no fatties, no facial hair, no body hair. Just hot shredded hairless men who are definitely not gay!”

Read more on Los Angeles Times

Cholesterol is a natural fatty substance produced in the liver and can also be found in some of the foods we eat.

Read more on BBC

It may be “airy,” but it’s fatty air.

Read more on Salon

It requires a level of physical brain development called mylenation — the growth of fatty sheaths that wrap around nerve cells, insulating them and allowing information to travel more quickly and efficiently through the brain.

Read more on Los Angeles Times

Related Words

• greasy 
• oily