The Collaborative International Dictionary of English v.0.48:

Meaty \Meat"y\, a.
   Abounding in meat.
   [1913 Webster]

WordNet (r) 3.0 (2006):

meaty
    adj 1: like or containing meat; "enough of vegetarianism; let's
           have a meaty meal" [ant: meatless]
    2: being on topic and prompting thought; "a meaty discussion"
       [syn: meaty, substantive]

Moby Thesaurus II by Grady Ward, 1.0:

84 Moby Thesaurus words for "meaty":
   adipose, allegorical, associational, beefy, big-bellied, bloated,
   blowzy, bosomy, brawny, burly, buxom, chubby, chunky, compact,
   connotational, connotative, corpulent, definable, denotational,
   denotative, distended, dumpy, epigrammatic, expressive, extended,
   extensional, fat, fattish, figurative, fleshy, full,
   full of meaning, full of point, full of substance, gross, heavyset,
   hefty, hippy, imposing, indicative, intelligible, intensional,
   interpretable, lusty, meaning, meaningful, metaphorical, obese,
   overweight, paunchy, pithy, plump, podgy, pointed, portly,
   potbellied, pregnant, pudgy, puffy, pursy, readable, referential,
   roly-poly, rotund, sententious, significant, significative, square,
   squat, squatty, stalwart, stocky, stout, strapping, substantial,
   suggestive, swollen, symbolic, thick-bodied, thickset, top-heavy,
   transferred, tubby, well-fed