YOU SAID:

I farted and a poopy almost slipped out

INTO JAPANESE

おならしてうんこが出そうになった

BACK INTO ENGLISH

I was about to fart and poop came out

INTO JAPANESE

おならをしようとしたらうんちが出てきた

BACK INTO ENGLISH

Poop came out when I tried to fart

INTO JAPANESE

おならをしようとしたらうんちが出てきた

BACK INTO ENGLISH

Poop came out when I tried to fart