When somebody is so startled or frightened that they crack a rip in their jeans. They jump so hard that they pass gas loudly and/or often times shit them self uncontrollably.
Did you guys see jimmy in class today? Amy smacked his ass and he flabber-gassed-it all over the back row during a silent study.
by Yo mama and them April 4, 2022
Get the Flabber-Gassed-Itmug. by audreyjohnismeanduane January 20, 2021
Get the flabbermug. by Gibbons  October 18, 2016
Get the Flabbermug. 
Get the Flabbermug. by Crazy Canadian  October 15, 2022
Get the flabbersmug. by Super motet  November 28, 2020
Get the Flabber cakemug. by fl1nch March 18, 2018
Get the Flabbermug.