trump something up

trump up

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.
See also: trump, up

trumped up

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!
See also: trump, up

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.
See also: something, trump, up