A derived unit of measurement taking into account actual weight, dimension, proportion, and of being at least 15 pounds too heavy.
Person 1: Dude, why are you so weird?
Person 2: My big sister used to sit on me when i was a child.
Person 1: So?
Person 2: So she's like ten years older than I am and weighs a fuckton more than I do.
Person 1: Damn...
A expression used to discribe a large ammount of something. A unit in the metric system. When written as an expression, fT. Be sure not to confuse this unit with ft meaning foot.
As in, I have a fuckton of work to do for school, all the ritalin in the world won't get me through this week.
Or, more appropriately, "That girl's always got a fuckton of guys hanging around, you'll never get her nunber"