YOU SAID:

there is a cow with many poops in his buttocks

INTO JAPANESE

彼のお尻にたくさんのうんちを持つ牛がいます

BACK INTO ENGLISH

There is a cow with a lot of poo in his ass

INTO JAPANESE

彼のお尻にうんちがたくさんある牛がいます

BACK INTO ENGLISH

There is a cow with a lot of poo in his ass