A: Is Mary all right? She left the office in a hurry this morning.

B: She’s fine. She was pulling a fast one when she said she had a headache.

Note: This slang term means “to succeed in an act of deception.” This expression originated in the English sport of cricket, and meant to bowl a fast ball. It probably became popular in the United States either in reference to a fast shuffle of cards or to the fastball in baseball, which usually comes when you’re not expecting it. For example: It turns out that the supposed alien visitors people had been seeing were just a bunch of teenagers pulling a fast one on the town.