CLICK ME TO APPY NOW :D
This server is a whitelist application only server that requires you to fill out an application to join. (does not mean you'll get rejected or anything, it's just to make sure you learn the rules and whatnot.)
But what is SlimeFun?
SlimeFun is basically a plugin that allows tekkit like game play, such as making backpacks, jetpacks and magical armor! (If you want more information, heres the website for the plugin: dev.bukkit.org/bukkit-plugins/slimefun/ )

Thank you for your time and see ya there!