The word used by Rowan Atkinson in "blackadder goes forth" to denote a state of insanity. I
the scene he puts pencils up his nose and repeats "
wibble wibble" in order to get sent home from
the trenches.
George: "What is
your name?"
Blackadder: "Wibble."
George: "What is 2 plus 2?"
Blackadder: "Wibble, Wibble."
Blackadder,
trying to prove he is mad, in his bunker, with
underpants on his head and a pendil up each nostril