The Collaborative International Dictionary of English v.0.48:

Malinger \Ma*lin"ger\, v. i. [imp. & p. p. MAlingered; p. pr.
   & vb. n. Malingering.]
   To act the part of a malingerer; to feign illness or
   inability.
   [1913 Webster]

WordNet (r) 3.0 (2006):

malinger
    v 1: avoid responsibilities and duties, e.g., by pretending to
         be ill [syn: malinger, skulk]

Moby Thesaurus II by Grady Ward, 1.0:

34 Moby Thesaurus words for "malinger":
   abandon, cut, dodge, dog it, duck, duck duty, get out of,
   goldbrick, goof off, jump, leave, leave loose ends, leave undone,
   let alone, let be, let dangle, let go, miss, not pull fair, omit,
   pass over, pass up, pretermit, procrastinate, shirk, skip, skulk,
   slack, slide out of, slip out of, sneak out of, soldier, trifle,
   welsh