Fangirl Japanese

From Fandom wank wiki

Fangirl Japanese may be found throughout the fanfic of pretentious anime fan writers. Learned from watching subtitled anime, this unique language is characterized by its inability to form complete sentences without several intervening words in Japanese. It usually consists of -san, -chan, -sempai, and -sama endings; words indicating family relationships, such as otouto, okaasan, and obaasan; and, naturally, swearing.

Anime fangirls will also sprinkle it throughout their conversations, online and RL, heedless of accuracy or the fact that it gets really fucking annoying really fucking fast.

Example of usage: Then the kuso hit the fan.

A couple infamous fangirl Japanese addicts: InuGrrrl and ChibiZoi.