Definitions for boatloadˈboʊtˌloʊd
Random House Webster's College Dictionary
the cargo that a boat carries.
Category: Nautical, Navy
Origin of boatload:
boatload, shipload, carload(noun)
the amount of cargo that can be held by a boat or ship or a freight car
"he imported wine by the boatload"
A large quantity.
He showed up an hour later with a whole boatload of hamburgers, chips, cookies, and assorted other munchies, not to mention sodas and beer, and we all fell in and stuffed ourselves silly.
Origin: From + . Notionally, because the commodity in question might have constituted the entire load of a cargo ship or boat.