睡帽;睡前酒;夜盜
Nightcap \Night"cap`\, n. 1. A cap worn in bed to protect the head, or in undress. 2. A potion of spirit drank at bedtime. [Cant] --Wright.
nightcap n 1: an alcoholic drink taken at bedtime; often alcoholic 2: a cloth cap worn in bed 3: the final game of a double header