WordNet (r) 3.0 (2006):

potty
    adj 1: marked by foolish or unreasoning fondness; "gaga over the
           rock group's new album"; "he was infatuated with her"
           [syn: enamored, infatuated, in love, potty,
           smitten, soft on(p), taken with(p)]
    2: (British informal) trivial; "potty little details"
    3: slightly intoxicated [syn: potty, tiddly, tipsy]
    n 1: a plumbing fixture for defecation and urination [syn:
         toilet, can, commode, crapper, pot, potty,
         stool, throne]
    2: a receptacle for urination or defecation in the bedroom [syn:
       chamberpot, potty, thunder mug]

Moby Thesaurus II by Grady Ward, 1.0:

80 Moby Thesaurus words for "potty":
   absurd, balmy, bananas, barmy, bats, batty, beany, bedpan, bonkers,
   buggy, bughouse, bugs, can, chamber, chamber pot, chemical closet,
   chemical toilet, commode, crackers, crapper, crazy, cuckoo, daffy,
   dippy, dotty, flaky, flipped, freaked-out, fruitcakey, fruity,
   gaga, goofy, harebrained, haywire, high-hat, inconsiderable,
   insane, insignificant, jerry, john, johnny, jordan,
   just plain nuts, kooky, latrine, loo, loony, loopy, minor, nuts,
   nutty, off the hinges, off the track, off the wall, petty,
   piss pot, pot, potty-chair, preposterous, privy, round the bend,
   screwball, screwballs, screwy, shoestring, silly, slaphappy, small,
   small-beer, snobby, snooty, stool, throne, thunder mug, toilet,
   trivial, unimportant, urinal, wacky, water closet