noun
Refers to the plant Nepeta cataria, known for its effect on cats. The Japanese term イヌハッカ (犬薄荷) is also used, but キャットニップ is common in pet-related contexts.
See also: 犬薄荷 (いぬはっか)
猫のおもちゃにキャットニップを入れると喜ぶ。
Cats love it when you put catnip in their toys.