As we all know, Lilo is from THE BEST DISNEY MOVIE EVER, 'Lilo and Stitch'. Basically, Lilo rushes into dance practice late because she has to feed Pudge the fish a peanut butter sandwhich every Thursday. As it happens, that Thursday they had no peanut butter, so Naani said for Lilo to give Pudge a tuna sandwhich.
"I can't give Pudge tuna! Do you know what tuna is? I'd be an abomination!"
So she is late to dance because they had to buy peanut butter so that Lilo could give Pudge his sandwhich.
After watching Lilo and Stitch for the gazillionth time, I decided to find out more.
I found out that Lilo has to give Pudge his weekly sandwhich because her parents died in a car crash caused by bad weather conditions, and as Pudge controls the weather, by her giving him his weekly sandwhich he will make sure something like that doesn't happen again. As she says, her family is already "broken".
I had to take several deep breathes and slap my cheeks a few times so I wouldn't cry, but you have permission to let a tear or two slide down your face.