More like woahvipositor
[Image description: Rhyssa lineolata, a type of Ichneumon wasp, rests on a leaf.]
Is it bendy? How do they work that thang?
Yes.
That is ENORMOUS. This bug is very cool and I would never want it to land on me
Apparently they use it to drill into wood to lay their eggs on wood-eating larvae which will be the young wasps' food source until they emerge into their adult forms. But yes, certainly a candidate for nightmare fodder.