! (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.