二次コン: (anime, manga) The feeling or opinion that two-dimensional anime or manga characters are more attractive (visually, physically or emotionally) than real-life people.

今昔: the past and the present

(informal) being extremely congested

(slang) raid attack

(Hachijō) Izu thrush

Eye dialect spelling of こんにちは (konnichi wa), representing "zū-zū" dialect Japanese. / (Internet slang) Alternative form of こんにちは (konnichi wa)

being hastily prepared

to raid an enemy

(video games) to play through the entirety of a game

(offensive, Internet slang) a man whose age is greater than about thirty or forty who lives in one's child room and with one's parent(s).