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Definition of flubber

flubber

/ˈflʌb.ər/
flub · ber
Adjective:flubbery
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flubber Lexical Profile

flubber Game Scores & Validity

• noun

1

A bouncy, rubbery polymer substance, especially one made as a children's science experiment from glue, water, and borax.

Example

"The elementary school students mixed white glue and borax solution to make colorful batches of flubber in science class."

2

Excess, soft body fat or flab (used informally and humorously).

Example

"He decided to start jogging every morning to shed some of the winter flubber around his waist."

Synonyms
View all synonyms for flubber

• Rhymes for flubber

• Nearby Words

flox
flu
flub
flubber
fluctuate
fluctuation
flue

Word Origin & Etymology

Coined in 1961 as a portmanteau of 'flying' and 'rubber' for the Disney film 'The Absent-Minded Professor', based on Samuel W. Taylor's short story 'A Situation of Gravity'. The humorous sense referring to body fat is also influenced by 'blubber' and 'flab'.

Cite this Entry

Wordmom. (2026). Definition of Flubber. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/flubber
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