What does "sabrage" mean?

The usually ceremonial technique of opening a bottle, typically of champagne, by slicing off the bottle's neck with a sabre.

Sabrage

/səˈbɹɑːʒ/ noun

noun ·Rare ·Advanced level

Noun

1
The usually ceremonial technique of opening a bottle, typically of champagne, by slicing off the bottle's neck with a sabre. uncountable

From French sabrage. By surface analysis, sabre + -age.