Top definition
Verb, transitive.

To be amazed, awestruck or suprised into a lapse in action.

To stop what one is doing because of the shock of an event or action.
I was flabbergast at the previously posted example for flabbergast, which prompted my entry for the word.
by Nate January 22, 2004
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4
the motion your ass cheeks make when you rip a huge one
Bob is flabbergasting he must have let one go.
by Geoff January 20, 2004
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5
I was entirely flabbergasted I didn't know what to do.

My mate told me something that left me flabbergasted.
by Sparkle 💫 September 21, 2019
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