cold turkey
Example:
Joe used to smoke, but he quit cold turkey and hasn't gone back to it since. He is living proof that going cold turkey can be successful, especially if you don't do your bad habit very often. He only smoked his cloves 3-4 times a week.
Joe used to smoke, but he quit cold turkey and hasn't gone back to it since. He is living proof that going cold turkey can be successful, especially if you don't do your bad habit very often. He only smoked his cloves 3-4 times a week.