ō piidatta
1. Was/were OP.
Noun
#25699
1. Was/were OP.
1. opening credits; title sequence
2. theme song (played during the opening credits of a TV show, etc.)
3. overprint
1. If/when OP…; If OP were…
1. If K-POP; When K-POP
1. Was K-pop.
1. Was J-Pop.
1. If J-POP; When J-POP