The Collaborative International Dictionary of English v.0.48:

Tidbit \Tid"bit`\, n. [Tid + bit.]
   A delicate or tender piece of anything eatable; a delicious
   morsel. [Written also titbit.]
   [1913 Webster]

WordNet (r) 3.0 (2006):

tidbit
    n 1: a small tasty bit of food [syn: choice morsel, tidbit,
         titbit]

Moby Thesaurus II by Grady Ward, 1.0:

24 Moby Thesaurus words for "tidbit":
   ambrosia, bonne bouche, cate, character assassination,
   choice morsel, dainty, delicacy, dessert, dirt, goody,
   gossip column, juicy morsel, kickshaw, malicious gossip, manna,
   morsel, nectar, savory, scandal, scandalmongering, slander, titbit,
   treat, whispering campaign