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blubber

American  
[bluhb-er] / ˈblʌb ər /

noun

  1. Zoology. the fat layer between the skin and muscle of whales and other cetaceans, from which oil is made.

  2. excess body fat.

  3. an act of weeping noisily and without restraint.


verb (used without object)

  1. to weep noisily and without restraint.

    Stop blubbering and tell me what's wrong.

verb (used with object)

  1. to say, especially incoherently, while weeping.

    The child seemed to be blubbering something about a lost ring.

  2. to contort or disfigure (the features) with weeping.

adjective

  1. disfigured with blubbering; blubbery.

    She dried her blubber eyes.

  2. fatty; swollen; puffed out (usually used in combination).

    thick, blubber lips; blubber-faced.

blubber British  
/ ˈblʌbə /

verb

  1. to sob without restraint

  2. to utter while sobbing

  3. (tr) to make (the face) wet and swollen or disfigured by crying

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. a thick insulating layer of fatty tissue below the skin of aquatic mammals such as the whale: used by man as a source of oil

  2. informal excessive and flabby body fat

  3. the act or an instance of weeping without restraint

  4. an informal name for jellyfish

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adjective

  1. (often in combination) swollen or fleshy

    blubber-faced

    blubber-lips

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
blubber Scientific  
/ blŭbər /
  1. The thick layer of fat between the skin and the muscle layers of whales and other marine mammals. It insulates the animal from heat loss and serves as a food reserve.


Other Word Forms

  • blubberer noun
  • blubberingly adverb

Etymology

Origin of blubber

1250–1300; Middle English bluber bubble, bubbling water, entrails, whale oil; apparently imitative

Explanation

Blubber is the thick layer of fat that keeps whales and other large swimming mammals warm in the cold water. Inuits and other northern people have traditionally relied on eating blubber. Based on marine animal blubber, some people describe human fat as blubber too — often in a derogatory way. When blubber is a verb, it means to sob uncontrollably: "The little girl sat down and started to blubber after skinning her knee." Blubber was originally spelled blober, meaning "a bubble" or "bubbling water," which led to the "crying" meaning of the word. In the 15th century, it also meant "jellyfish" and "whale oil."

Keep Reading on Vocabulary.com

Vocabulary lists containing blubber

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"It had bite marks on the pectoral fins and around the edges of the torn blubber which are consistent with grey seal bite marks," he said.

From BBC • Mar. 2, 2026

Their evidence included finding stone harpoon points that hadn’t been used since the mid-1800s embedded in the blubber of whales recently killed by traditional whalers.

From Salon • Dec. 27, 2024

This was a revival of an older recipe, we were told, but the chicken was a blob of blubber with the consistency of paper.

From Los Angeles Times • Oct. 8, 2024

Typically, testing for DDT looks for four to eight chemicals, but a 2016 paper co-authored by Hoh and Aluwihare identified 45 DDT-related chemicals in the blubber of dolphins from off the coast of Southern California.

From Science Daily • May 6, 2024

The genetic information includes how to convert plankton into blubber; or how to hold your breath on a dive one kilometer below the surface.

From "Cosmos" by Carl Sagan