WordNet (r) 3.0 (2006):

tiddly
    adj 1: slightly intoxicated [syn: potty, tiddly, tipsy]

Moby Thesaurus II by Grady Ward, 1.0:

45 Moby Thesaurus words for "tiddly":
   addled, beery, bemused, besotted, blind drunk, boozy, canned,
   crapulent, crapulous, disguised, dizzy, drenched, drunk, drunken,
   far-gone, flustered, fou, full, gay, giddy, glorious, happy,
   in liquor, inebriate, inebriated, inebrious, intoxicated, jolly,
   lightheaded, maudlin, mellow, merry, muddled, nappy, pixilated,
   plastered, reeling, shikker, sodden, sotted, swimming, tipsy,
   turned around, under the influence, vertiginous