The number of farts until an object has absorbed its maximum volume or amount of methane. At such a point the object then begins to release the trapped methane(Farts) whenever it is disturbed. Now this generally only applies to furniture, but can also be applied to other items such as carpet or clothing. In all reality this term applies to any object that can absorb gaseous emissions.
After maxing out her coats F.A.R. by accidentally farting on it. Kelly wondered if she really wanted to hug Jack.
John gasped for air as his lung reached their Fart Absorption Ratio.