no-fault fart
A fart that is not purposely spewed into the air, such as when someone is laughing uncontrollably, working out to the max, etc. A no-fault fart does not need to be apologized for, and no one shall take offense to its occurrence.
dude 1:"Man, that joke was so funny, and i was laughing so hard that it just happened, im sorry"
dude 2: "No need to apologize, it was a no-fault fart, i could have happened to anyone in your situation"
dude 2: "No need to apologize, it was a no-fault fart, i could have happened to anyone in your situation"