When a flabby person farts in your face while you are going down on them!
HO #1: Fat Bastard came to visit me last night.

HO #2: Oh yea, how was it?

HO #1: He flabbergasted me!

HO #2: Then what?

HO #1: He said, "Soddy, I faderted." BIG DEAL! It was a WET ONE! I had to take a shower ASAP!
by Johrg Jerhog July 29, 2006
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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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Although Sharon had a blessing time on the backwater tours, she later was flabbergasted and couldn't help but regret eating the extra can of beans she had been offered.
by goodlookout September 27, 2010
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verb: an unexplainable event or situation in which the person experiencing is overwhelmed in blissful happiness or contentment -beyond orgasmic pleasure
when the surfer man found the winning ticket, he was so flabbergasted he passed out.

the little family from Iowa were so flabbergasted when the crew remodeled there home
by itxt July 22, 2009
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Alice was flabbergasted after she spotted her mother smoking a joint with the housekeeper.
by I'mNotGoth May 30, 2016
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