To follow clues and info about something in order to accomplish something.
"Nelson, his wife Helen, and his associate John Paul Chase picked up a tail from the FBI in the town of Barrington, near Chicago. After a short chase, the two camps were picketed across from each other hurling bullets."

"I got to pick up a tail from this girl's heart with her friends. She is too much mysterious."
by linkc007 May 30, 2017
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