The Collaborative International Dictionary of English v.0.48:

Hunk \Hunk\, n. [Cf. Hunch.]
   1. A large lump or piece; a hunch; as, a hunk of bread.
      [Colloq.]

   2. a sexually attractive, well-built man.
      [PJC]

WordNet (r) 3.0 (2006):

hunk
    n 1: a well-built sexually attractive man
    2: a large piece of something without definite shape; "a hunk of
       bread"; "a lump of coal" [syn: hunk, lump]

Moby Thesaurus II by Grady Ward, 1.0:

89 Moby Thesaurus words for "hunk":
   accumulation, acervation, agglomerate, agglomeration, aggregate,
   aggregation, amassment, amount, batch, bit, block, budget, bulk,
   bunch, butt, chip, chunk, clip, clipping, clod, clump, clutch,
   collop, congeries, conglobation, conglomerate, conglomeration,
   count, crumb, cumulation, cut, cutting, deal, dollop, dose, end,
   fragment, gathering, glomeration, gob, gobbet, group, heap, hunch,
   large amount, loaf, lot, lump, mass, measure, mess, modicum,
   moiety, morsel, nugget, number, pack, parcel, paring, part,
   particle, pat, piece, portion, quantity, rasher, ration, scoop,
   scrap, shard, shaving, shiver, shred, slice, sliver, small amount,
   smithereen, snack, snatch, snip, snippet, snowball, splinter,
   stitch, stockpile, stump, sum, tatter, wad