Word
fatty
Phoneticsfat·ty, stress on the first syllable
US/ˈfæti/
UK/fˈæti/
Definitions
01containing fat
B1 · Intermediate
adj. containing a lot of fat or oil.
adj. containing, composed of, or consisting of a high proportion of fat.
“You should avoid eating too many fatty foods like chips and burgers.”
“The chef recommended a sharp citrus dressing to balance the fatty texture of the roasted duck breast.”
Antonyms
02insult for an overweight person
C2 · Proficiency Countable noun Informal · Slang · Vulgar
n. a very rude and unkind name for someone who is fat.
n. a derogatory and offensive term for an obese person.
“The bullies at school used to call him 'fatty' during gym class.”
“The use of such derogatory epithets as 'fatty' in the workplace is often grounds for immediate disciplinary action regarding harassment.”
Usage
Used as a direct insult or a cruel nickname.
Teaching tip
This term is highly offensive and should be avoided; it is included here so learners recognize it as a hostile insult rather than a neutral descriptor.
03a large marijuana cigarette
C2 · Proficiency Countable noun Slang
n. a thick or large cigarette containing marijuana.
n. a large or thick marijuana cigarette, often referred to as a blunt.
“In the movie, the characters were sitting on the porch rolling a fatty.”
“The lyrics of the song contain several references to rolling a fatty, reflecting the counter-culture themes of the era.”
Real-World Examples
“Suppose I’m interested in helping my pregnant sister understand whether taking fish oil, which contain omega-3 fatty acids – specifically DHA – during pregnancy will help lower her chances of having a preterm birth.” “Some became giants themselves—prehistoric forms more than 60 feet in length—and all developed insulating layers of fatty blubber to help regulate their body temperature in the sea.” Etymology
From Middle English fatty, equivalent to fat + -y. Cognate with Saterland Frisian fattig (“fatty”), Dutch vettig (“fatty, greasy”), German Low German fettig (“fatty”), German fettig (“fatty”).
From fat + -y (diminutive suffix).
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Word family
NOUN
ADJECTIVE
- Exam level
- CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.C2 ProficiencyIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.8.5–9.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 6.0114–120
- Frequency
- Frequent
- Level
- C2 · Proficiency
- Updated
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