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1.
A babbling, foolish person
nonsense blather
blthrskt (without vowels)
author blthrskt
Staten Island, NY
Blathering Blatherskite
From Ducktales, Fenton Crackshell accountant to Scrooge McDuck...always said this... then Gyro invented a robot, Gizmo Duck, and used a secret password to get the Gizmo Duck robot suit on the person who said the word "Blatherskite"...and in turn Fenton Crackshell became Gizmo Duck...whenever he said the secret password..."Blatherskite"...
by blthrskt April 29, 2009
 
2.
Someone who talks rubbish, mainly tall stories etc. Literally 'blather shite', but the H became a K somehow.
Don't listen to old Tom in the pub, he's just a blatherskite.
by David from Kingsbury November 07, 2003