Would love to hear from anyone that understand in cooperate law. Can I integrate curses from monkey island in my app? For example, these:
http://www.worldofmi.com/gamehelp/insults/mi1.php
IANAL but I think this is just a copyright question - there are legit ways to use copyrighted works but you might be asking for trouble because they're still actively developing those games and that IP for today's platforms. It is probably not worth gambling your software on this.
"Section 107 [of the U.S. copyright law] contains a list of the various purposes for which the reproduction of a particular work may be considered fair, such as criticism, comment, news reporting, teaching, scholarship, and research."
It doesn't sound like the intended use in a commercial application falls under any of these protected categories.
"When it is impracticable to obtain permission, you should consider avoiding the use of copyrighted material unless you are confident that the doctrine of fair use would apply to the situation. ... If there is any doubt, it is advisable to consult an attorney."
It would be much cheaper to get competent legal advice from a lawyer now than it would be to defend yourself against an infringement lawsuit that might be brought against you by the copyright holders. And if you don't have the resources to defend yourself in court, it won't matter whether your usage of this content is "fair use" or not.
http://www.copyright.gov/fls/fl102.html