A particularly pernicious, nasty, form of diahhroea in which the victim feels the need to pass gas, but instead liquid shit comes squirting out resulting in a very unpleasant shitting of one's pants, often in a public or otherwise unforgiving location, far from a shithouse.
Damn, I thought I was just gonna fart, but had the Hershey Squirts and wound up shitting myself right there in the mall.
When you have to take a shit and all that comes out is a loud fart and a spray of shit. (Just compare to the Hershey syrup bottle when it's on it's last squirt).
Bro I had the hersheysquirtstoday, as soon as I sat on the toilet, it started squirtin' out.