A word used in conversation to reflect general indifference to a situation or object of conversation.(interjection)
Mildly uncomfortable; not good.(adjective)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "bleh" in a sentence
"Here, I’ll paraphrase: “Blah blah, doesn’t work”, “Yadda Yadda costs too much”, “bleh bleh is a communist”, and “blah blah meddling in private industry.”"
"Or, if it is a series and has been kind of "bleh" in quality, I won't buy the paperback if there's no eBook."
"I think the number of important titles, rather than their content, is what contributes to the "bleh" factor."