A stop gap measure is a temporary repair. It always reminds me of the well-known story about a Dutch boy, who held back a flood by sticking his finger in a hole in a dyke.
Dropping a brick is an idiom for making a faux pas.
Wet paint is a sign frequently seen. Do people take more notice when it is spelled WET PIANT?
New-fangled is a derogatory term for modern.
Edge to edge is an expression which might mean various things. Objects may be placed edge to edge, or carpets laid from wall to wall, in which case they are fitted carpets.
A plate-glass window is usually very large. When I was a child most windows had small panes. Later technology and fashion changed so that many houses now have picture windows. (The view is not interrupted by frames.)
Window-shopping is looking without buying. It is best done on the high street after the shops have closed, if you happen to be at a loose end.
A window on the world could describe any media which bring news to us – radio, TV, newspapers, magazines and the world-wide web.
It goes against the grain is a metaphor about resistance. If a piece of wood is being smoothed with a plane, it is best to work along the grain of the wood than across it.
Cast in the same mould is an expression about resemblances between people, either in appearance or, more usually, character. Did you ever make plaster casts using rubber moulds? (US molds)
If it ain’t broke, don’t fix it. This expression is good advice and reminds me of another – You’ve mended it worse!
Work in progress may describe road-works or building work. WIP is a tag or category used by writers with blogs. I tend to consider this blog as a WIP as it is a project. Those of us who believe that God is working to make us more like Jesus regard ourselves as works in progress too.