Wiktionary
FLABBERGAST, verb. (transitive) To overwhelm with bewilderment; to stun, confound or amaze, especially with ludicrous affect.
FLABBERGAST, noun. (uncountable) Overwhelming surprise, confusion or shock.
FLABBERGAST, noun. (countable) An awkward person.
Dictionary definition
FLABBERGAST, verb. Overcome with amazement; "This boggles the mind!".
Wise words
All our words are but crumbs that fall down from the feast
of the mind.