scads(n = noun.quantity) dozens, gobs, heaps, lashings, loads, lots, oodles, piles, rafts, scores, slews, stacks, tons, wads - a large number or amount; "made lots of new friends"; "she amassed stacks of newspapers"
is a kind of large indefinite amount, large indefinite quantity

scads, n.pl. US colloq. large quantities.

Etymology:
19th c.: orig. unkn.