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blah

[blah]Slang.
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noun
  1. nonsense; rubbish: What they say is blah.
  2. the blahs, a feeling of physical uneasiness, general discomfort, or mild depression; malaise: After the long weekend many workers had the Monday-morning blahs.
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adjective
  1. insipid; dull; uninteresting.
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Origin of blah

First recorded in 1915–20; imitative

Synonyms

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1. bunkum, humbug, hooey, eyewash, twaddle, bosh.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for blah

blah

blah blah

slang
noun
  1. worthless or silly talk; claptrap
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adjective
  1. uninteresting; insipid
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verb
  1. (intr) to talk nonsense or boringly
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Word Origin

C20 imit
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

Word Origin and History for blah

n.

"idle, meaningless talk," 1918, probably echoic; the adjective meaning "bland, dull" is from 1919, perhaps influenced by French blasé "bored, indifferent." The blahs "depression" is attested by 1966.

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Online Etymology Dictionary, © 2010 Douglas Harper