Found it! [http://www.google.com/search?aq=f&sourceid=chrome&ie=UTF-8&q=world#hl=en&safe=off&q=world&tbs=dfn:1&tbo=u&sa=X&ei=9UwrTsv0IsSqsQL59IS1Cw&sqi=2&ved=0CBgQkQ4&bav=on.2,or.r_gc.r_pw.&fp=4314f23e9084643a&biw=1366&bih=643]THE_NAMSU said:"My wish is for you to grant my wish literally when I say "Leave this world," to you, the genie.
Can someone think of a way to twist that?
The eighth definition of world defines is as "A period of history." so it's very possible for the genie to travel to a different period of time, and, say, get your dad to wish for a harem of women. He never meets his wife, and you're never born. Something to that degree.