Power Blap

When you prolong the urge to defecate until the last possible minute and then when you finally sit on the toilet you forcefully grunt to expel the fecal matter creating a “blap” sound that echoes from the toilet.

During the ride home from Panda Express, Dave new a power blap was imminent.

Dude I just power blapped so hard it sounded like a tuba in the toilet!