big time
US /ˈbɪɡ ˌtaɪm/
UK /ˈbɪɡ ˌtaɪm/

1.
tingkat tertinggi, kesuksesan besar
a very important or successful level in a career or activity
:
•
She finally made it to the big time in Hollywood.
Dia akhirnya berhasil mencapai tingkat tertinggi di Hollywood.
•
He's hoping to hit the big time with his new invention.
Dia berharap bisa mencapai kesuksesan besar dengan penemuan barunya.
1.
sangat, banyak sekali
to a great extent; very much
:
•
Thanks big time for your help!
Terima kasih banyak atas bantuanmu!
•
He messed up big time on that project.
Dia kacau besar dalam proyek itu.