YOU SAID:

I farted and a poopie almost slipped put

INTO JAPANESE

私はおならをし、うんちが滑り落ちそうになった

BACK INTO ENGLISH

I fart and the poop almost slid off

INTO JAPANESE

私はおならをし、うんちはほとんど滑り落ちた

BACK INTO ENGLISH

I fart and the poop almost slid off