WordNet (r) 3.0 (2006):

lallygag
    v 1: be about; "The high school students like to loiter in the
         Central Square"; "Who is this man that is hanging around
         the department?" [syn: loiter, lounge, footle,
         lollygag, loaf, lallygag, hang around, mess
         about, tarry, linger, lurk, mill about, mill
         around]

Moby Thesaurus II by Grady Ward, 1.0:

40 Moby Thesaurus words for "lallygag":
   bill and coo, bum, copulate, dally, dawdle, delay, diddle,
   dillydally, doodle, drag, falter, flag, goldbrick, goof off, halt,
   lag, laze, linger, loaf, loiter, loll, lollygag, lounge, make love,
   make out, neck, pet, piddle, poke, shilly-shally, smooch, spoon,
   sweet-talk, tarry, toy, trail, trifle, wanton, waste time,
   whisper sweet nothings