Guard Rail Grabber
A very powerful dump that is propelled out your anus at such great speeds it forces you to be ejected from the toilet causing you to grab the "safety" or "handicap rail" to prevent from shooting upwards at a significant speeds.
At work today Cindy dropped a huge guard rail grabber I heard her moan and sigh with relief as the safery rail prevented her from blasting through the ceiling and leaving the bathroom looking like a Resident Evil murder scene.