The sudden overwhelming shock of confusion, which is sometimes shortly followed by a groan of delirium. This is sometimes referred too as a "Gammy Descention" which in some cases has been found to make people vomit.
Other words used to express this emotion are:
Gammecular, Gammful, Gammual, Gam.
"Mate, That tortoise with seven heads and a leg without a knee was Gammy."
"I don't know if its the acid or not but im going on a gammy descention..."
"Sometimes I like to play with fire while licking my dogs anus..." (This is Gammy/Gammecular/Gammful/Gammual)