I'm not entirely sure what 'gif up his ass' means specifically in this context. 'Walken' might refer to Christopher Walken, an actor. And 'Pulp Fiction' is a well - known movie. It could potentially be some sort of very strange or made - up reference related to the movie and Walken, but without more context it's hard to be certain.
In a theater, a woman was so excited during the show that she stood up suddenly to cheer. But her big belt buckle got caught on the seat and her pants ripped a bit at the back. She was mortified as the people around her started to giggle and she had to quickly sit down and try to fix it as best as she could.
No, there is no obvious connection between 'gif up his ass' which is an unclear and inappropriate - sounding phrase and 'Walken in Pulp Fiction'. Walken has a role in 'Pulp Fiction' and it's a classic movie with its own set of themes and characters, and this strange phrase doesn't seem to relate to it in any meaningful way.
There could be a person who is really hungry and decides to eat a large meal. For example, a hiker who has been walking all day and then comes across a diner. He orders a huge plate of steak, fries, and salad and eats it all up.
The phrase 'star was big ass fanfiction' is rather ambiguous. 'Star' has multiple meanings as mentioned before. 'Big ass' is a bit of a crude expression to show abundance or importance in this context. Fanfiction often takes characters or concepts from other works and expands on them. So perhaps this refers to a fanfiction that has a lot to do with a star - either a person or an object in a story - in a very extensive or important way.
I'm not sure what you specifically mean by 'big ass eating story'. If you are referring to eating a large amount of food, here's a story. Once, at a buffet, my friend John saw all the delicious food and decided to eat as much as he could. He piled his plate high with all kinds of meats, veggies, and desserts. He ate so much that he could barely move afterwards.
I don't really have a specific 'big ass sister story' on hand. But it could be a story about a sister who has a big heart and is always there for her family, like she might be the one who takes care of everyone when parents are away, cooking big meals and giving great advice.
A strong - willed character can be in a 'big ass sister story'. She would be the type who doesn't give up easily, whether it's fighting for a cause she believes in or trying to achieve her personal goals.
I'm not sure specifically as I haven't read this particular fanfiction. But generally, 'Shokugeki no Soma' fanfictions often revolve around the characters from the original series in new culinary adventures, rivalries, or relationships. Maybe this one has some unique plot related to a big or important ingredient like a lemon in a cooking context.