mumblecorenoun [ U ]
uk/ˈmʌm.bəl.kɔːr//ˈmʌm.bəl.kɔːr/a style of independent film that is cheaply made and usually about daily life and personal relationships:
"Hannah Takes the Stairs" is directed by Joe Swanberg, one of the leading practitioners of mumblecore.
a mumblecore movie