Broken Whoopee Cushion
When you farted as you sneeze at the same time, used to hide the fart sounds.
PersonA "Aw, that sneeze was stanky, did you commit broken whoopee cushion?"
PersonB "Pffft, no." Proceeds to hide fart with sneezing.
PersonB "Pffft, no." Proceeds to hide fart with sneezing.