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