cold turkey adv.
1. [1910s+] (US) directly, openly, candidly, without any warning.
2. [1920s–50s] (US) caught in the act, obviously guilty, without any excuse.
3. [1950s+] (drugs) of withdrawal, without any form of medication to modify the pains.
4. [1960s] without any alcohol or narcotics, although not intending withdrawal.
5. [1990s+] in fig. use, denying oneself.
[1910s+] (orig. US) to speak frankly and without reserve, to talk hard facts, to get down to business.