I've seen quite a few people using it. I figured it was origianlly a typo
that caught on, a bit like my "Het" when I join AGD games. I did that a
couple times accidently and from then on whenever I joined a game where
there was one or more of the regs I would be greeted with "Het misfit". Got
to the stage where I use it all the time now.

Heh! Yeah I figure it's a type of leet speak, just wondered if there was
more to it. Wiki has nothing. Google was more helpful:

"A froup is ... well, it's a bit difficult to explain. So imagine this:

Imagine you're driving along, minding your own business -- this assumes that
you have a car, or can, in fact, drive someone else's car if the opportunity
arises -- when you begin crossing a bridge over a somewhat large body of
water. At that precise moment you turn on the radio and are instantly
assaulted by the worst music you have ever heard, but all attempts to flip
it off again are met with failure.

As if that wasn't enough, there's a tollbooth up ahead and they'll only take
correct change. So now you're digging into every nook and cranny searching
for that extra quarter you know is -somewhere- in here while speeding along
at ninety-plus kilometers per hour, the music's blaring, and you're surround
on all sides by, collectively, asphalt, water, and air.

Then you hear a *thump*thump*thump* coming from the rear of your car; a
quick look in the rearview shows, to your relief, that you don't have a
flat, but then the trunk springs open and seven wild elephants who had been
trying to escape for the last couple of hours make their way onto the
expressway, severely clogging up traffic behind you -- not that there would
be much difference, since you have yet to find that crucial twenty-five
pence to make it past the toll booth, so they would have been stuck anyway.
Of course, the other drivers don't know that, so they start honking and
cursing at you, and the music is still going at top volume.

Against all odds, an earthquake hits, severely disrupting your searching
efforts, not to mention putting you in a somewhat precarious situation, what
with the bridge tipping and swaying every which way. Through this, however,
the coin you had been risking your neck over hits you upside the head, and
it is but a simple matter to grab onto it and make your way through the
tollbooth with hardly a care. Another swift glance in the rearview shows
that you made it off the bridge just in time to see it topple into the body
of water, taking everyone who had been honking at you quite mercilessly with
it. A final rumble of the earth helps your trunk slam shut, and you are
allowed to go on your merry way.

This has nothing to do with what a froup is.

But that feeling of justice, and of pity, of sadness and of joy, of anger
and remorse -- that is what a froup is.

A froup is also where you can make up stuff just like the above to people
you don't even know, and be assured that at least half will take you
seriously.