Full Monty
A British phrase dating back to the 1980's that means "the whole thing," and was popularized by the hit movie of the same name.

The origin is unknown, but some people have guessed these origins:

•It refers to the habit of Field Marshal Montgomery where he meticulously planned his assaults.

•It refers to Field Marshal Montgomery in full-dress uniform wearing all his medals.

•It refers to Field Marshal Montgomery's habit of eating a very large breakfast.

•It refers to the purchase of expensive clothing Montague Burton tailor shop

•It comes from the game of 3-card Monte

•It is a version of "the full amount

•It comes from a juice tv commercial where the actor asks for "the full Del Monte;"

(来源：英语麦当劳－英语学习门户 http://www.EnglishCN.com)