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To conceive, concoct, or devise some idea or piece of information in a fraudulent and self-serving manner. A noun or pronoun can be used between "trump" and "up." He just trumped the evidence up for his proposal and hoped no one would investigate it. Their government has a long history of trumping up charges against citizens who express dissenting opinions.
Fraudulently conceived, concocted, or devised. Hyphenated if used before a noun. It has become clear that the so-called evidence in this report is clearly trumped up. These trumped-up charges are just an excuse for the government to silence me in jail!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
1. heavily promoted; overly praised. (Hyphenated before nominal.) I don't care for trumped-up stuff like that movie. That movie was so trumped up. I expected to see something much better than it turned out to be.
2. made-up; contrived. They put Larry in the slammer on some trumped-up charge. It was a silly, trumped-up idea. Just forget it.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
trump something up
tv. to promote or boost something. (see also trumped up.) They trumped up the movie so much that many people were disappointed when it finally came out.
1. mod. heavily promoted; overly praised. That movie was so trumped up. I expected to see something much better than it turned out to be.
2. mod. made up; contrived. They put Larry in the slammer on some trumped up charge.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.