Originally posted by MadMelmultiple things don't count, because they're not going to stack out to be 1 meter in any direction. it's possible to stack 5 20cm objects in a 40cm cubed position.
i once swallowed 2 enemies and 3 blocks, all of which are kirby's size..
5 X 20 cm = 1 metre 😬
I'm affraid you'll have to do better than that, especially since due to game mechanics you are capable of inhaling multiple objects at a time, this does not however prove that you can swallow something that is larger than the given parameters.