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
Seong-Hun	sung-hoon	Korean
Celeste	che-LE-ste (Italian), sə-LEST (English)	Italian, English
Aviram	-	Hebrew, Biblical Hebrew
Makenzie	mə-KEN-zee	English (Modern)
Kearns	[kɜ:nz]
Ellil	-	Near Eastern Mythology