What is Takeshima?

When the Japanese female high student self-consolation act doing, the tool which it use

The Takeshima until end it put in and it was good too much

Takeshima - meme gif

Wrong name for Dokdo(독도in Korean), which is a territory of Korea.

Dokdo, a beautiful island of Korea, is comprised of Dongdo(East Island) and Seodo(West Island).
Dokdo is sometimes wrongly called as Takeshima.

uncountable and countable
an alcoholic drink made from rice, or a type of this drink.

a glass of takeshima
a delicious takeshima