Adj. The feeling right after something awful happens, such as when your heart stops and your hands get clammy and cold and your head and ears feel hot.
Example: I felt terribly prefext after I had realized I had backed up into the car on my way to the beach.
complete and correct in every way, of the best possible type or without fault: so flawless as to the feeling derived from witnessing such an event is akin to peeing after being forced to hold it in for a very long time.