Often an abbreviation of chiri-nabe; a hot-pot dish of fish, tofu, and vegetables served with ponzu. In some regions it refers broadly to this type of dish.
今夜はちりにしようか。あっさり食べられるから好きだ。
Shall we have chiri tonight? I like it because it's light.
ちり（ちり鍋）はポン酢で食べるのが一般的だ。
Chiri (chiri-nabe) is generally eaten with ponzu.