YOU SAID:

the biggest noise one can make is a monkey slinging poo

INTO JAPANESE

人が作ることができる最大の音は、猿がうんちを投げることです

BACK INTO ENGLISH

The loudest sound a person can make is a monkey throwing poop

INTO JAPANESE

人が出せる最大の音はサルがうんちを投げる音

BACK INTO ENGLISH

The loudest sound a human can make is the sound of a monkey throwing poop

INTO JAPANESE

人間が出すことができる最大の音は、サルがうんちを投げる音です

BACK INTO ENGLISH

The loudest sound a human can make is the sound of a monkey throwing poop