also: にたりがい
noun
Korean mussel; Mytilus coruscus
Slang term for the Korean mussel, a species of edible saltwater mussel. Also known as 貽貝 (いがい).
See also: 貽貝
ニタリ貝は韓国料理でよく使われる。
Korean mussels are often used in Korean cuisine.
noun
silicone male masturbator; pocket pussy
Slang term for a silicone receptacle designed for male masturbation, often shaped like a mussel. The name comes from the resemblance to the shellfish.
ネットでニタリ貝を買う人もいるらしい。
Apparently some people buy silicone masturbators online.
Standard Japanese term for the Korean mussel; ニタリ貝 is a slang alternative.
The origin is uncertain. The word may be a playful or slang coinage, possibly from the resemblance of the silicone toy to a mussel shell. The kanji 似たり (resembling) is likely ateji.