A shit shot is the absolute worst shot known to mankind. It is a vile concoction of beer end-drippings, vodka residue and partially dried tequila gravy. Actually, you know what, no. Whatever. I don't give a shit, there's no formula, just make like a chapstick-eating homeless dude and power the sad bitter remnants of anything you enjoyed drinking earlier into a hateful slurry closer genetically to liquefied sheep vomit and engine grease than liquor that will nevertheless get you mildly drunk, albeit in a self-hating way.
After gagging down half a dozen shit shots, in addition to some genuine liquor, Hannah's night was ruined utterly.