YOU SAID:

the crabby little boy pooped his pants at the party

INTO JAPANESE

気難しい少年がパーティーでズボンをうんちした

BACK INTO ENGLISH

Grumpy boy pooped his pants at a party

INTO JAPANESE

不機嫌そうな少年がパーティーでズボンをうんちした

BACK INTO ENGLISH

Grumpy boy pooped his pants at a party