It's when a dude jerks off. And is in the middle of jerking off. There is a little bit of cum that comes out because he is super horny but wants to hold back the cum.. That's called forcum as in before the cum.
A fortunate unforseen circumstance. An unexpected perk as a result of any given chain of events.
An obvious melding of the words fortunate + unforseen + circumstance.
This word originated as a forcumstantial product of a slip of the tounge by a friend attempting to say "Fortunate unforseen circumstance".
Its obvious poetry, and the way it trips lightly off the tounge make it a forcumstantial addition to any cutting edge lexicon or meme cache.
She was a fan of 70's zombie movies, and through luck and forcumstance, met a guy who was into Romero films.
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.