A rather tenuous link but a hole in the wall is slang for a cash machine in the UK which always makes me think of this track by Hard-Fi https://m.youtube.com/watch?v=-f8AgWOpNt8
I scratch a living, it ain't easy
You know it's a drag
I'm always paying, never make it
But you can't look back
I wonder if I'll ever get
To where I want to be
Better believe it
I'm working for the cash machine
Cash machine
Cash machine