(verb) to shitpan. When one or a group of drunken people attempt to cook for themselves in the early hours with disasterous effects. Extra points for using ingredients you don't technically own.
NB: This is not the process of deficating on the toilet seat as suggested by the noun 'shitpan'.
"Mate I'm not well after all the booze and shitpanning last night."
"Her flange tastes like a shitpanned stew."
"Want to come over for dinner? I promise I won't shitpan it."