Sputter

[Sarah]

To spit out hastily by quick, successive efforts, with aspluttering sound; to utter hastily and confusedly, without controlover the organs of speech.In the midst of caresses, and without the last pretend incitement, tosputter out the basest accusations. Swift.

[Sarah]

A half liquid chunky sounding fart which smells horrenduos.

[Greta]

Make a series of soft explosive or spitting sounds.