Flabbergasteration 

To express a person feeling flabbergasted

The boy is in a state of flabbergasteration

Flabbergasteration by Rnigger March 2, 2023

flabbergaster 

This is when you're in the 69 and rip a monstrous fart directly up the nasal passages of your partner.

She nearly choked when he delivered a flabbergaster during their first 69.

flabbergaster by Disco Misfit October 4, 2006

flabbergastered 

Under the influence of alcohol/drugs.

"You're flabbergastered"

flabbergastered by Lexa June 26, 2004

Flabbergasterist

Flabbergasterist is someone that gets surprised and speechless at an extreme point for almost everything. (I AM SO BORED RN.)

He's such an flabbergasterist.

Flabbergasterist by dodgekid September 27, 2023

Flabbergastered 

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!

Flabbergastered by Alessandro06121999 June 16, 2011

flabbergastered 

Being totally puffed out.

Bugger me mate! I'm flabbergastered!

flabbergastered by cocodile dundee May 18, 2006

Flabbergaster 

(Single)An old dude who scares the shit out of people.

(Plural)A convention of hobos who bring liquor stores lots of change

The flabbergaster jumped out of the alley and scared the shit out of Toby.

Flabbergaster by Sherpent February 25, 2009