[ mouth-fool ]
/ ˈmaʊθˌfʊl /
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See synonyms for: mouthful / mouthfuls on Thesaurus.com

noun, plural mouth·fuls.
the amount a mouth can hold.
the amount taken into the mouth at one time.
a small quantity.
Informal. a spoken remark of great truth, relevance, effectiveness, etc.: You said a mouthful!
a long word or group of words, especially one that is hard to pronounce.
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Origin of mouthful

1375–1425; late Middle English. See mouth, -ful

usage note for mouthful

See -ful.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use mouthful in a sentence

British Dictionary definitions for mouthful

/ (ˈmaʊθˌfʊl) /

noun plural -fuls
as much as is held in the mouth at one time
a small quantity, as of food
a long word or phrase that is difficult to say
British informal an abusive response
informal, mainly US and Canadian an impressive remark (esp in the phrase say a mouthful)
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

Other Idioms and Phrases with mouthful


see say a mouthful.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.