also: オン・パレード
noun
Wasei-eigo from English 'on parade'. Used for a conspicuous, often showy, succession or display of things, events, or people. Common in compounds like ～のオンパレード.
wasei-eigo (Japanese-coined English), from on parade
今年の紅白は豪華アーティストのオンパレードだった。
This year's Kohaku was a parade of gorgeous artists.
彼のスピーチはジョークのオンパレードで、会場が笑いに包まれた。
His speech was a succession of jokes, and the venue was filled with laughter.