What does the Dutch word floosier mean?

The Dutch word "floosier" doesn't exist. It's likely a misspelling or a word from a specific dialect or slang.

It might be a misspelling of:

* "fluister": meaning whisper

* "floeper": meaning a "flippant person" (informal)

* "floot": meaning flute (a musical instrument)

If you could provide more context or the sentence where you encountered this word, I might be able to help you better understand what it was intended to mean.