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!
Boy 2: Why?
Boy 1: I Flabbergastered your Mom last night, She loved it!
by Alessandro06121999 June 16, 2011

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

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
the little family from Iowa were so flabbergasted when the crew remodeled there home
by itxt July 21, 2009

Being totally puffed out.
by cocodile dundee May 18, 2006

by I'mNotGoth May 30, 2016

by Deccashoots May 18, 2016

(Single)An old dude who scares the shit out of people.
(Plural)A convention of hobos who bring liquor stores lots of change
(Plural)A convention of hobos who bring liquor stores lots of change
by Sherpent February 25, 2009
