Possibly a shortened form of "to bar none" or "barring none".
- (idiomatic) Without exception; excluding nothing else of the same kind.
- 1913, Zane Grey, Desert Gold, ch. 4,
- Mexican horses are the finest in the world, bar none.
- 1922, James Joyce, Ulysses, ch. 16,
- . . . Ireland, or something of that sort, which he described in his lengthy dissertation as the richest country bar none on the face of God's earth.
- Follows a superlative-modified noun.
- French: please add this translation if you can
- Russian: please add this translation if you can
- Spanish: sin excepción (es)