Kablooie - When you try to let one out but it comes out like a volcano

When you try to let one out but it comes out like a volcano and poops all over you.

I had a kablooie during math class and my pants were ruined.

My brother had a kablooie in the car and it smelled like a garbage can.

I tried to let one out and had a kablooie instead of a fart.