WordNet (r) 3.0 (2006):

oodles
    n 1: a large number or amount; "made lots of new friends"; "she
         amassed stacks of newspapers" [syn: tons, dozens,
         heaps, lots, piles, scores, stacks, loads,
         rafts, slews, wads, oodles, gobs, scads,
         lashings]

Moby Thesaurus II by Grady Ward, 1.0:

38 Moby Thesaurus words for "oodles":
   batch, considerable, deal, gobs, good deal, great deal, heap,
   heaps, jillion, lashings, loads, lot, lots, mess, million, mint,
   pack, peck, pile, piles, pot, quantities, quite a little, raft,
   rafts, scads, sight, slew, slews, spate, stack, stacks, thousand,
   tidy sum, trillion, wad, wads, whole slew