back:
The phrase at the back of can mean two things: The most common is in reference to time, where the back of an hour is the period just after it. “Ah’m meeting them at the back of four.” There is no set length to this period but it would probably not extend past twenty minutes: “Ye were meant to be here at the back of nine and it’s half-nine already.”
The other use is to mean behind: “She left her motor at the back of Woolies.”
a Brit different 
If I ever make a trip to Scotland you’re coming with me. I would be so confused! 😉
I say that all the time, but never thought of it as being something only Brits say. I suppose it is though. Eeeeeh!
Okay I’m going to be so Ready to go to Scotland when i GO…nobody will know…I’ll work on my accent and I’ll review all your words! 🙂
Just now getting to it. I’m sorry it’s taken days. I played it and hubby was trying to decipher what you were saying. I was indignant on your behalf.