Simlish
Simlish is the language of the Sims. It is developed from Ukrainian and Tagalog. It can be learned by studying the Sims' speech in certain situations. A good dictionary is found http://bbs.thesims2.ea.com/community/bbs/messages.php?&openItemID=item.2,item.43,item.61,item.41,item.23&threadID=8d04f2582c30dca38b0a2d07d28fb420&directoryID=2&startRow=1#5b3c9c18c3808d99f1e04c01fdb828ea.