It is the fart that someone accidentally drops and sometimes loud,usually at a formal place like office/restaurant. But because his colleagues want to save him from guilt,embarrassment and possibly a suicide attempt, they pretend to be decent ,acting not to notice the fart. They later discuss this issue among themselves after the guy leaves, mocking him with scorns that are even worse than snake bite,laugh at him and call him names.

Got the covid-19 vaccine