Farting, cutting the cheese, letting her rip, breaking wind - whatever you call it, experts say it's better out than in even on a plane.
Pilots, especially, have been urged to let flatulence out for safety's sake, but passengers risk being ignored by cabin crews if they do.
A team of Danish and British gastroenterologists produced a paper on flatulence on planes after one of them, Jacob Rosenberg, was inspired on a flight between Copenhagen and Tokyo.
The problem is that farting is an invariable consequence of digestion and people do it about 10 times a day.
But people may fart more on flights because of changes in the volume of intestinal gasses as cabin pressure alters.
Hans Christian Pommergaard, Jakob Burcharth, Anders Fischer, William Thomas and Professor Rosenberg have told the New Zealand Medical Journal the holding back option may seem "alluring" but there are drawbacks.
Stress, discomfort, pain, bloating, dyspepsia and other symptoms could ensue, while not discounting the chance that all the effort may be sabotaged by turbulence in any case.