To explosively fart due to massive pressure after attempting to hold it for a long time.
"Oh shit, I'm about to blow a hootie." "Gross, Greg just blew a hootie all over his pants."
by Ralph Wintergreen August 27, 2013
1 more definition
Get (getting) pissed off, or about to get pissed off
"I'm about to blow a hootie!" or "Don't blow a hootie!"
by Ned Rutledge July 18, 2013