also: トレヴィアン
interjection
excellent; splendid; very good
A French-derived interjection used in Japanese to express strong approval, similar to 'great!' or 'wonderful!'. Often used in a lighthearted or slightly stylish way.
from French très bien
このケーキ、トレビアン!
This cake is excellent!
プレゼン、トレビアンだったよ。
Your presentation was splendid.