windowblocker
nounUK /ˈwɪndəʊˌblɒkə/
US /ˈwɪndoʊˌblɑkər/
A windowblocker is a thing that stops you from seeing or opening a window.
The new building across the street is a windowblocker that hides our view of the park.
OTHER MEANINGS
2. A software tool that stops pop-up windows from appearing on a computer screen.
I installed a windowblocker to stop all those annoying ads from popping up.
3. A person who stands in front of a window and blocks the light or view.
My little brother was being a windowblocker, so I couldn't watch the parade outside.
4. A physical panel or cover placed over a window to block sunlight or peeping eyes.
They put a wooden windowblocker over the broken pane until it could be fixed.