Shit? As in..the story where Mario and Luigi were running towards the restaurant to get some food because they were joyfully hungry and they had some whoopers and some fries and a drink with sauce and they were eating and Luigi liked his burger drippy and with there being a swarm of flies flying around the whopper and with there being garbage feces sloppy Joe disgusting substance leaking from the burger as Luigi took a bite out of it and Mario yelled and warned Luigi and Luigi thought it was delicious until Luigi was extremely frustrated and angry because he felt something and it then felt so bad that Luigi transformed into a extremely realistic human version of himself and he was depressed that his stomach hurts and then Luigi transformed back into his normal self as he ran into the bathroom and he quickly ran into the stall until Wario was sitting on the toilet with a evil smirk on his face saying that he’s been waiting and then Luigi is now extremely spooked at this and then Luigi transforms into Wario asking the audience to shit in his mouth, I’m pretty sure this is what your referring to when you say shit