have your cake and eat it (too)
US /hæv jʊər keɪk ænd iːt ɪt tuː/
UK /hæv jʊər keɪk ænd iːt ɪt tuː/

1.
mendapatkan keduanya, ingin memiliki segalanya
to want or try to do two things that are impossible to do at the same time
:
•
You can't have your cake and eat it too; you need to choose between your career and your hobby.
Kamu tidak bisa mendapatkan keduanya; kamu harus memilih antara karier dan hobimu.
•
She wants to work full-time and also travel the world, but she can't have her cake and eat it too.
Dia ingin bekerja penuh waktu dan juga berkeliling dunia, tetapi dia tidak bisa mendapatkan keduanya.