Flunchbecken, one is flunch and the other is becken, together they are Flunchbecken
You make a flunch by jumping forwards with a great fall flunching the ground around.
A tree full of nematodes is called Wohnblock, lot´s of insects live and die in this loved tree, they feel like urban people in a Wohnblock, a natural tree instead is a strong big plant without nematodes, it has wounderfull flowers, fruits and texture without nematodes of any kind.
If you call a tree "Wohnblock", you think that this tree has to much population of insects, birds or other enemies. You do not need to buy an Insect Hotel, the insects live already in a dead tree.