A yeoman of the guards, instituted by Henry VII. Their office was to stand near the bouffet, or cupboard, thence called Bouffetiers, since corrupted to Beef Eaters. Others suppose they obtained this name from the size of their persons, and the easiness of their duty, as having scarce more to do than to eat the king's beef.
BEEF EATER
Meaning of BEEF EATER in English
Slang English vocab. Английский сленговый словарь. 2012