Sekon desu nattsu

A phrase used by horny Japanese men. It has an American counterpart called “Suck on deez nuts”.

Japanese men usually say this while teasing their waifus, in hopes that they do suck their nuts. Usually, if their waifu responds, the phrase is followed by another phrase, “sekkon yo nattsu”.

Koroshinsou: Bby girl wanna “sekon desu nattsu”?
Shineba: Ara ara, I sense a horny man. I’d be willing to “sekkon yo nattsu”.