This statement means that after eating pineapple, girls may appear sweeter or more pleasant.

Girls become sweeter after eating pineapple. To put it simply, it may mean that after girls eat pineapple, some components of pineapple improve body odor or bring other positive effects, giving people a sense of A sweeter, more pleasant feel.

This statement may originate from Internet buzzwords or cultural customs, and is used to describe some positive changes in girls after eating pineapples.