It means BYOB but fun is substituted for booze. This is done because alcohol often starts the fun. The lone Sober person at a party does not usually have any fun.
Fun is also substituted as a code word so that minors don't have to worry about adults figuring out what is going to go on at a party.
The fact that it sounds nerdy and innocent makes it ironic.
The act of putting your arm all the way to your elbow...or more specifically your funny bone..... inside any Orifice that will take an arm that far. For example..... anal funny boning is different then vaginal funny boning which is different then oral funny boning.
Guy 1: tell me why you got rid of your boxing speed bag, again?
Guy 2: Now that my wife can take my funny boning her vagina and butt hole at the same time.... my arms are too tired for any thing else
n. software that is no longer sold or supported by the original publisher / developer, often found as free downloads on the internet because it cannot be obtained elsewhere. Not legal, but often seen as morally acceptable because the company that made it is no longer selling the title, nor releasing it as freeware, therefore abandonware is "keeping the gamealive", so to speak.
Doom II is not abandonware because idstill sells it, while The Incredible Machine is not sold, therefore is abandonware.