WordNet (r) 3.0 (2006):

chicken feed
    n 1: dry mash for poultry [syn: chicken feed, scratch]
    2: an amphetamine derivative (trade name Methedrine) used in the
       form of a crystalline hydrochloride; used as a stimulant to
       the nervous system and as an appetite suppressant [syn:
       methamphetamine, methamphetamine hydrochloride,
       Methedrine, meth, deoxyephedrine, chalk, chicken
       feed, crank, glass, ice, shabu, trash]

Moby Thesaurus II by Grady Ward, 1.0:

44 Moby Thesaurus words for "chicken feed":
   barley, bird seed, bran, bric-a-brac, cat food, chaff, chickenshit,
   chop, corn, details, dog food, eatage, ensilage, feed, fodder,
   forage, froth, gimcrackery, grain, hay, knickknackery, mash, meal,
   minutiae, oats, pasturage, pasture, peanuts, pet food, provender,
   rubbish, scratch, scratch feed, silage, slops, small beer,
   small change, straw, swill, trash, trifles, trivia, trumpery,
   wheat