push the envelope
US /pʊʃ ðə ˈɛnvəˌloʊp/
UK /pʊʃ ðə ˈɛnvəˌloʊp/

1.
melangkaui batasan, berinovasi
to go beyond the usual or accepted limits; to innovate or experiment with new ideas
:
•
The company is always trying to push the envelope with its new technology.
Syarikat itu sentiasa cuba melangkaui batasan dengan teknologi baharunya.
•
Artists who push the envelope often face criticism before their work is accepted.
Artis yang melangkaui batasan sering menghadapi kritikan sebelum karya mereka diterima.