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1. slang A male agent of the United States Treasury Department. A bunch of T-men raided the financial company on suspicion of money laundering and fraud. He was so good with numbers and managing money that it just made sense that he'd end up as a T-man.
2. vulgar slang A man who is primarily attracted to or aroused by a woman's breasts. ("T" is an abbreviation of the vulgar slang term "tit," which means "breast.") A: "Wow, look at the legs on that woman!" B: "Eh, I'm more of a T-man, myself."
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
n. a federal narcotics agent; a Treasury agent. (The T is from Treasury.) It’s curtains for you, T-man!
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.