"Damn it!" Doctor Emmett Brown exclaimed as he looked at his wrist watch on his left arm. "Where is that tall purple clad Italian?"
Marty McFly moved his hands about as he tried calming Doc Brown down. "Relax, doc. I'm sure that Waluigy or whatever his name is might be making a new batch of tacos."
Doc Brown then placed both of his hands on Marty. "That's what I'm afraid of Marty!" He then began pacing as he placed his hands behind his back. "Without Waluigi running his taco stand outside of participating as a playable character in the Mario spin offs, there will be a tear in the space time continuum, and..." He then dropped his jaw in disbelief as he slapped his hands on his face. "Great Scott! The very fabric of the universe is ripping apart as we speak!"
"This is heavy." Marty admitted as he wrapped his arms around the back of his head. "Just what is he doing?"
Meanwhile, Waluigi snuck into the DeLorean, going back to the future literally as he had a whole stash of tacos with him, hoping that it would take him far away from the present, away from the gassy Princess Daisy and annoyingly cute Toadette.
"Where I'm going, I don't need roads!" Waluigi laughed as he went 88 miles per hour, disappearing with the DeLorean in a flash as flames appeared in the sky.