Hi, there! Why does "at sixes and sevens" mean messy? Are there any story behind it? Why do six and seven use the plural form here?
Thank you in advance!

Question

Answer

Oh wow. This is part of a lyric in Evita, and I never stopped to think about what it meant.

Answer

https://en.m.wikipedia.org/wiki/At_sixes_and_sevens#:~:text=%22At%20sixes%20and%20sevens%22%20is,condition%20of%20confusion%20or%20disarray.

I have never heard of this expression, but apparently it comes from gambling. An old game of dice called "Hazard"