noun
tunnel tent
A tent with a curved, semi-cylindrical shape resembling a kamaboko fish cake. Used in camping and outdoor contexts.
キャンプ場にカマボコテントを張った。
We pitched a tunnel tent at the campsite.
Variant spelling with a middle dot; less common but seen in some contexts.
From the shape resembling a kamaboko (a semi-cylindrical fish cake) plus 'tent'. The exact origin is uncertain, but it is a Japanese-coined compound.