noun
extreme eroticism; something very erotic
Slangy compound of 極 (extreme) and エロ (erotic). Used in casual contexts to describe highly sexual content or situations.
この漫画は極エロすぎて、18禁だよ。
This manga is so extremely erotic that it's 18+.
彼の話はいつも極エロで、聞いてて恥ずかしくなる。
His stories are always extremely erotic, and I get embarrassed listening to them.