Utterance of indifference

• Jaded interjection popularized by "The Simpsons"
• One’s not moved border up
• Not so exciting
• Sound signifying that one is not impressed
• Like "Captain Phillips" or "Argo," according to me
• "Not so exciting, in my opinion"
• "I don't care either way"
• Interjection made with a shrug

Wiktionary Word definitions in Wiktionary
a. 1 mediocre; lackluster; unexceptional; uninspiring. 2 apathetic; unenthusiastic. interj. (context slang English) (non-gloss definition: Expressing indifference or lack of enthusiasm.)

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
expression of apathy or indifference, by 2003 (perhaps from 1992).