interjection
manse!; hurrah!; hooray!
Korean-origin celebratory cheer, equivalent to Japanese 万歳 (ばんざい). Sometimes used mockingly or in reference to Korean contexts.
from Korean manse
韓国の独立運動の場面で「マンセー！」と叫ぶシーンがある。
There is a scene where people shout 'Manse!' during the Korean independence movement.
彼は冗談で「マンセー！」と言って乾杯した。
He jokingly said 'Manse!' and made a toast.