[common; Usenet/Internet; punctuation varies] From a Robin Williams
routine in the movie Dead Poets Society spoofing
radio or TV quiz programs, such as Truth or
Consequences, where an incorrect answer earns one a blast from
the buzzer and condolences from the interlocutor. A way of expressing
mock-rude disagreement, usually immediately following an included quote
from another poster. The less abbreviated *Bzzzzt*, wrong, but
thank you for playing
is also common; capitalization and emphasis
of the buzzer sound varies.