In the early days, on the western frontier, red eye was the common alcoholic drink found in most saloons. Over-consumption made the eyes red!

• 在〔美国〕西部拓荒时代的早期，＂redeye＂是在大部份的酒廊就有的非常普遍的酒。喝了过多就使眼睛充血了。