It's an actual place found in northern Shoa. It's a place where the King's or the Lord's daughter run off (eloped) to, not to get married to the man she didn't want. It was a far far away place from her village. And when ppl asked where the Lord's daughter went the answer was "እንጨቆረር ገባች" so it became a saying "ከፈለክ እንጨቆረር ግባ" to refer to get lost to a far far away place.