YOU SAID:

I have just pooped my pants

INTO JAPANESE

私はちょうど私のズボンをうんちしました

BACK INTO ENGLISH

i just pooped my pants

INTO JAPANESE

私はちょうど私のズボンをうんち

BACK INTO ENGLISH

I just poop my pants

INTO JAPANESE

パンツをうんちするだけ

BACK INTO ENGLISH

just poop your pants

INTO JAPANESE

ズボンをうんちするだけ

BACK INTO ENGLISH

just poop your pants