When you are finished having oral sex with a girl and you shake her cheeks until she salivates. Can also be done with the asscheeks until sweat comes out.
Example 1. Boy 1: Last night was so Great.

Boy 2: Why?

Boy 1: I Flabbergastered your Mom last night, She loved it!
by Alessandro06121999 June 16, 2011
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FLABBERGASTED is defined as when your heart jumps with surprise at an amazingly unique difference in your life; often a change or surprise!
I was FLABBERGASTED when I got a letter from Harvard University saying that I'm in!
by Queen/Cupcakes/Sister February 21, 2017
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oh my gosh, i can't believe it!....
Don't bother me right now, I'm in the middle of flabbergastation.
by AppleJuice May 03, 2008
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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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The state or condition in which one is feeling "Extra" flabbergasted.
"Upon seeing a fellow human in a grocery store, wearing a yellow unitard with no underwear, sporting a giant moose knuckle has left me in a state of flabbergastion."

"People that act like douchebags often leave me in a state of flabbergastion."
by olivesOolviesreal February 20, 2018
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