F-ton

An extremely large yet very specific unit of measurement. It is an amount of some object that difficult to hold or carry to the point where one could not hold or carry a single more unit of said object. Obviously different people have different people have different capacities of holding or carrying; therefore, even though a F-ton is a specific unit of measure it is also an individual dependent variable.

Me: I just bought a F-ton of groceries.
Wife: Really you can't carry anything more.

Me: well, maybe I could carry one more bag.
Wife: then it's not an F-ton you jackass it's just a lot of groceries.