Mokkori

Mokkori (モッコリ^?) is a Japanese sound symbol word (gitaigo) that essentially represents the "sound" of something sticking out in a flat surface, or the sound of something rising very quickly. 
 
A popular term with fans of 1980s Japanese animation, it was popularized in the manga and anime City Hunter by Tsukasa Hojo. Ryo Saeba, the main character of City Hunter, took jobs to help people in need, always on the lookout for a "mokkori chance" (in the context of the series, a chance to do something perverted with an attractive woman, such as groping her buttocks). His clients are almost exclusively beautiful young women, with whom he constantly seeks "mokkori chance". When not working he can often be found hitting on random young women on the streets of Tokyo. His constant womanizing often leads to violent repercussions from his partner Kaori.

Mokkori-kun is a T-shirt character from Japan based on a character used to promote mushrooms. Its unique shape is a sales point with T-shirt customers.

Marimokkori (まりもっこり^?) is a character popularized in Hokkaidō, Japan. Much like the Tamagochi, the name "Marimokkori" is a pun: marimo is the word for the green algae clusters that grow in some of Hokkaidō's lakes, while mokkori is a Japanese slang term for an erection.
Marimokkori's fame comes through merchandising, with a number of various souvenirs being sold in Hokkaidō and throughout Japan.