cold turkey
US /ˌkoʊld ˈtɜːr.ki/
UK /ˌkoʊld ˈtɜːr.ki/

1.
secara mendadak, serta-merta, secara drastik
the sudden and complete cessation of an addictive habit or substance rather than a gradual reduction
:
•
He quit smoking cold turkey after 20 years.
Dia berhenti merokok secara mendadak selepas 20 tahun.
•
Going cold turkey on sugar can be tough.
Berhenti gula secara mendadak boleh jadi sukar.