BLAH
bombast, fustian, rant, claptrap, blah
(noun) pompous or pretentious talk or writing
Source: WordNet® 3.1
Etymology
Noun
blah (countable and uncountable, plural blahs)
(uncountable, informal) Nonsense; drivel; idle, meaningless talk.
(informal) (in plural, the blahs) A general or ambiguous feeling of discomfort, dissatisfaction, uneasiness, boredom, mild depression, etc.
Synonyms
• (nonsense, drivel): bosh, bombast, bunkum, claptrap, eyewash, fustian, rant, hooey, humbug, rubbish, twaddle
• (feeling of boredom, mild depression): malaise
Adjective
blah (comparative more blah, superlative most blah)
(informal) Dull; uninteresting; insipid.
(informal) Low in spirit or health; down.
Interjection
blah
An expression of mild frustration.
(When spoken repeatedly, often three times in succession: blah blah blah!) Imitative of idle, meaningless talk; used sometimes in a slightly derogatory manner to mock or downplay another's words, or to show disinterest in a diatribe, rant, instructions, unsolicited advice, parenting, etc. Also used when recalling and retelling another's words, as a substitute for the portions of the speech deemed irrelevant.
Representing the sound of vomiting. See bleah, bleh.
Synonyms
• (boring content): yada yada yada
Verb
blah (third-person singular simple present blahs, present participle blahing, simple past and past participle blahed)
(intransitive) To utter idle, meaningless talk.
Anagrams
• Bahl
Source: Wiktionary