pull a fast one: Information from Answers.com

1. pull a fast one: Information from Answers.com:

"Idioms: pull a fast one --Also, put over a fast one. Engage in a deceitful practice or play an unfair trick. For example, He pulled a fast one when he gave me that fake employment record, or She tried to put over a fast one, but we found out in time to stop her. [Slang; c. 1920]"

2. The Phrase Finder--Re: "pull a fast one": Posted by Sauerkraut on October 29, 2000

In Reply to: "Pull a fast one" posted by Mark on October 28, 2000
: Origin ?? Meaning??

Origin: Checked several usual references, and nothing is to be found.
Meaning: To get away with something.
Possible derivation:
In the early days of the sport of trapshooting, live pigeons were released from a "trap" or cage at the shooter's command of "pull". To pull a fast one could then mean to release a target that was so fast that it missed by the shooter.