means adult in japanese. often used to describe anime pornography (it is NOT hentai. Hentai is a kanji (compound word) of the words Hen (strange, weird) and Tai (behavior, attitude, appearence etc etc) It is always used to describe a person and NEVER anime or manga) If someone was going to point out anime pornography, they would say "seijin-anime" or "seijin-manga". NOT "hentai"
average schmuck: hey man did u see that hentai NG is advertising?
smart person: its not hentai its seijin.
average schmuck: oh realy? I didnt know that
smart person: its not hentai its seijin.
average schmuck: oh realy? I didnt know that
by G-Imago130 July 10, 2006
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Get the sexii mug.A Sejik is a man who is very nice looking. And he attracts all the girls (and guys). He gets fairly good grades, likes to do sports or some kind of martial arts. He is very good in bed, and all the ladies want him to have a one night stand with them.
by pezzervoid November 17, 2020
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