nattevingerwerk *
* wet finger work
Word used here and there by Some People
noun • Something that is done without much precision or base in anything, like wetting your finger and sticking it in the air to feel which direction the wind is coming from.
"Proberen voorspellen wanneer de Coronacrisis over is blijft tot nu toe nattevingerwerk."
"Trying to predict when the Corona crisis will be over still remains wet finger work."
Added October 2020 by amarens
3 out of 5 Dutch, Flemish speakers have heard this