The act of speaking foolishly and without purpose, often annoying others in the process. Talking at length for the sake of hearing one's own voice.
The stupid twit wouldn't stop blithering about how 'deep' her favourite fad author is.
por FeO2 27 de Agosto de 2010
often used as a prefix it "idiot", meaning incompetant
"my god, you BLITHERING IDIOT! HOW COULD YOU HAVE DONE SUCH A THING?!?!"
por all knowin' 26 de Agosto de 2003