squeak a henry
To emit a terrible, no-good very bad fart. The sufferer may realize the henry squeaking is imminent and feel uncontrollable terror as it approaches. A squeaked henry is characterized by dizziness, confusion, and a desire to no longer be alive.
Holy Lord Jesus, I'm about to squeak a henry! I'm not kidding, my soul is about to blow out of my ass! Call the EMTs!