What is So-called?
1.
All purpose adjective to convey contempt, derision, or inferiority.
The so-called Patriot Act presumes that a patriot would support illegal searches and the sacrifice of hard won liberty.
2.
adjective, commonly or popularly but often inaccurately so termed
the so-called 'smut' you are referring to is, in fact, a work of art
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