This tag is for questions about *programming* the Metasploit framework, not for using the framework or attacking a specific site.
The Metasploit Framework is an open-source project owned/sponsored by Rapid7 for vulnerability assessment, exploitation development, penetration testing, and many other computer and network security-related tasks.
Since version 3 of the Framework, Metasploit has been written primarily in Ruby. Version 2 and older were written in Perl. The various payloads, stagers, and shellcodes are primarily written in C, assembly, and Java.
Metasploit is developed on Github. Documentation and community forums are available on Rapid7's community site. Questions can also be asked in the #metasploit channel on Freenode.
If your question is about using Metasploit, rather than programming with it, then it should probably go on our sister site Information Security.
If your question is about attacking a specific system, such questions are off-topic on Stack Overflow. They are also off-topic on Information Security unless they demonstrate an understanding of the concepts involved and clearly identify a specific problem.
Also, any issues resulting from using such tools without permission from the target are your own risk; we do not endorse such actions in any way.
