"Look to the mint of your seven/eaten shits", a daily nonsense phrase used in disapproving exclamation of an unlikely event. No one knows where it comes from,

"Look to the mint of your seven/eaten shits", a daily nonsense phrase used in disapproving exclamation of an unlikely event. No one knows where it comes from, and people with similar backgrounds as me raise a curious eyebrow when its said, but its origin reaches at least as far back as my great-grandmother's generation.