Vaagdoenerij means to do vaguely
Actually, Vaagdoenerij is not really a word, but it is used in the spoken language. It is meant to indicate that someone is doing very vaguely (consciously or unconsciously). You speak of Vaagdoenerij when someone is telling something that there is no rope to tie. Drunk people also often do vaagdoenerij because the context is gone, or because the heel is jumped on the branch.