1. peppery（of food)
2. rapierlike（cynicism, wit)
e.g. ピリっとした甘さ (piritto shita amasa) spicy sweetness
See alc.co.jp for more.
A few Indian restaurants in my area serve a dish called sitafal curry (シターパル・カレー), a kabocha-squash-based curry, which I had never had till I came to Japan.* I’ve had it both sweet and spicy. After I learned how to make palak paneer, I wanted to try my hand at kabocha curry. My Indian colleague said that sitafal is a fruit in India, but they don’t really use it in curry. When I looked online for a recipe in Japanese, Google just linked to restaurant menus and Japanese curry-rice with kabocha; English sites yielded similar results. Now that I know how palak paneer works, I swapped kabocha for the spinach and completely readjusted the spices to complement the kabocha.