Question

In the Pokedex entry for D/P - B/W, it says "triplet Weezing have been found."

And the little bubble in the centre of the two gass balls could probably mean something; I've never seen one in the wild - nor heard of it appearing.
If you can actually find one, plese tell me where you can find one :)

Answer 1

No, there is no possibility of getting one. However, there is that third section of Weezing. This can possibly mean that that part sometimes becomes another face/body, and can possibly allude to an evolution in a later Generation like Gen 6.