(Colloquial) The amount of cow manure that will fit in the bed of a 3/4 ton pickup. For fresh, wet, stinking manure, this would be 750 pounds. For dry manure, something less, perhaps 500 pounds.
Related to the Metric Fuckton, Which is greater than a Metric Megaton, but not as great as a Metric MegaFuckton. Ultimatelyall of these terms apply to a lot of unwanted or unliked things or events.
-I've seen a shitload of people on that website.
-Really, a lot?
-Well, maybe six. But they've been really shit, and people-y, you know?
-I shitty-well know. There is always a whole shitload of people.