quit cold turkey
米俳優 ロビン・ウィリアムズさんの突然の死に関して，米ネットワーク abcは華やかな表舞台の活躍の影で，苦悩するプライベートに肉薄しています。
昨年，カリフォルニアの豪邸を売りに出したとき，友人とどうしたのかなと話をしたことを思い出しました。
http://www.bankrate.com/lite/real-estate/celebrity-house-for-sale-robin-williams-1.aspx
Inside Robin Williams's Troubled Life
For decades, Robin Williams seemed nothing but jovial in many of his award-winning films, TV appearances and stand-up routines.
However, privately, the actor, who died of a suspected suicide Monday, struggled with demons.
"He has been battling severe depression of late," his publicist told ABC News. "This is a tragic and sudden loss. The family respectfully asks for their privacy as they grieve during this very difficult time."
Williams, who was 63 at the time of his death, had also struggled with substance abuse in the late '70's and early '80's. However, after his friend John Belushi died of an overdose in 1982, and his son, Zachary, was born in 1983, Williams quit cold turkey.
http://abcnews.go.com/Entertainment/inside-robin-williamss-troubled-life/story?id=24939519
ここのquit cold turkey（アルコール，ヤク，たばこなどときっぱりとやめる）のcold turkeyは，中毒患者のデトックスの過程で皮膚に鳥肌が立つところからの比喩です。英辞朗から例文を２つ引用してきます。
He quit smoking cold turkey on medical advice.
医者の助言に従ってたばこをきっぱりやめた。
"Have you quit smoking?" "Yeah, I kicked the habit cold turkey."
「たばこはやめたの？」「うん、きっぱりやめたよ」
