"abundance, a large quantity," 1866, American English (Tennessee), perhaps from the caboodle in kit and caboodle.
Entries linking to oodles
kit and caboodle n.
also kaboodle, 1870, earlier kit and boodle (1855), kit and cargo (1848), according to OED from kit (n.1) in dismissive sense "number of things viewed as a whole" (1785) + boodle "lot, collection," perhaps from Dutch boedel "property." Century Dictionary compares the whole kit, of persons, "every one" (1785).