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1.
An exhausted and/or frustrated sigh; origin: onomotopoeic (a deflating of the chest through loosely connected lips; not to be confused with the much more upbeat raspberry)
fwibble.
by Kaolin Fire August 07, 2008

Words related to fwibble

despair ennui fuck meh resignation sigh
 
2.
A rarely used substitute for fuck, often used when fuck is deemed too offensive.
Fwibble off you mother fwibbling ass raping bitch whore
by Fwibble Girl March 31, 2005