quit (something) cold turkey

To stop doing something abruptly. The phrase is most often used to describe the sudden cessation of a drug. After smoking for so long, I should have never tried to quit cold turkey—the withdrawal symptoms are unbearable. I'm so impressed that you quit gambling cold turkey!

Common Names:

Name	Pronounced	Usage
Danica	-	Serbian, Croatian, Slovene, Slovak, Czech, Macedonian, English
Vasilije	-	Serbian
FÉLix	FE-leeks (Portuguese)	French, Spanish, Portuguese
Sofie	zo-FEE (German), so-FEE-e (Danish), so-FEE (Dutch)	German, Danish, Dutch, Czech
Jalen	JAY-lin	African American (Modern)
Zygfryd	ZIK-frit	Polish