What does Multiply do (the Kuriboh card)?

Not 100% sure.. but I think you tribute 1 Kuriboh and Fill up your empty monster spaces with Kuriboh Tokens

Also, can the token be tributed?

Here's the entire text of it:

Multiply
Quickplay Magic
Tribute a face-up "Kuriboh". Place a "Kuriboh Token" (Dark/Fiend/1/300/200) in every empty Monster Zone on your side of the field. The "Kuriboh Tokens" cannot be used as a Tribute for a Tribute Summon (or Set).

So yes, the tokens can be tributed, but not for a tribute summon (just like the Scapegoat tokens).

You could even be cool and play Mystic Plasma Zone. Summon Kuriboh, attack directly, then Multiply it, and attack with all the Tokens. That's straight up 4800 points of damage.

Most sadly, however, we in the world that is not Japan do not yet have access to the glories of Multiply, and it is not determined when we ever will. :(

I think it'll eventually come. It took us forever to get Flute of Summoning Kuriboh, which is an awesome card. I still need to get a couple more.

Does anybody know if that Berfomet, or whatever the heck 5 Fuzzball fusion monster that Yugi used during the Orichalcos series is an actual card, or just another Manga fav? The whole attack, defusion, attack type thing was pretty slick 8^D

Berformet is a real OCG card, but it doesn't have anything to do with the fuzzballs. It can fuse together with Gazelle to make another OCG fusion monster:

Berfomet
Dark/Fiend/5/1400/1800
When this card is successfully Normal Summoned or Flip Summoned, you may add 1 "Gazelle the King of Mythical Beasts" from your Deck to your hand.

Chimera the Flying Mythical Beast
Wind/Beast/6/2100/1800
"Berfomet" + "Gazelle the King of Mythical Beasts"
When this card is destroyed, you can Special Summon either "Gazelle the King of Mythical Beasts" or "Berfomet" from your Graveyard face-up in either Attack or Defense Position.

The 5 Kuriboh siblings and their fusions that Yugi used are currently anime only cards.

oops didn't see that someone posted what i was going to say sorry -.-