YOU SAID:

I did a oof in my pants

INTO JAPANESE

私はズボンでひづめをしました

BACK INTO ENGLISH

I hoofed in my pants

INTO JAPANESE

ズボンにひづめた

BACK INTO ENGLISH

Hooves on pants

INTO JAPANESE

ズボンのひづめ

BACK INTO ENGLISH

Pants hooves

INTO JAPANESE

パンツひづめ

BACK INTO ENGLISH

Pants hooves