YOU SAID:

I just pooped my pants and now it smells funny

INTO JAPANESE

ズボンをはいただけで、今は変なにおいがします

BACK INTO ENGLISH

I just put on my pants and now it smells weird

INTO JAPANESE

ズボンをはいただけで変なにおいがする

BACK INTO ENGLISH

It smells strange just by wearing pants

INTO JAPANESE

ズボンを履くだけで変なにおいがする

BACK INTO ENGLISH

It smells strange just by wearing pants