scataclysm
Accidentally shitting yourself when trying to force a fart.Many times a situation just call for a fart-as a comic relief or just because someone's face happens to be in the vicinity of your ass.Forcing a fart with an underlying,but asymptomatic case of diarrhea,will almost certainly result in a scataclysm.
Mom handerd me the phone and said,"Here,wish your grandma happy birthday." So,I place the receiver near my bung and tried to ad lib a fart resulting in a scataclysm.