have a cow
US /hæv ə kaʊ/
UK /hæv ə kaʊ/

1.
marah besar, mengamuk, mengomel
to become very angry, upset, or agitated about something, often over a minor issue
:
•
Don't have a cow just because I'm five minutes late.
Jangan marah-marah hanya karena aku telat lima menit.
•
My mom is going to have a cow when she sees this mess.
Ibuku pasti akan marah besar kalau melihat kekacauan ini.