It’s not even really a joke!

Differing interpretation with Trent happened immediately, so Pope Pius IV issued the bull Benedictus Deus, which imposed a latae sententiae excommunication on anyone who, without the approval of the Holy See, presumed “to publish in any form any commentaries, glosses, annotations, scholia on, or any kind of interpretation whatsoever of the decrees of this council.” The reason the Bull gave was to avoid the “perversion and confusion” arising from private interpretations of the Council’s decrees.
To further curb problematic interpretations, St. Pius V established the Sacred Congregation of Cardinal Interpreters for the Council of Trent. After the pontificate of Gregory XIII, who renamed it the Congregation for the Execution and Interpretation of the Council of Trent, Sixtus V increased its authority in providing authoritative interpretations and of judging other interpretations, such as those of provincial councils and synods. After the short pontificate of Urban VII, Gregory XIV increased its authority even further, allowing it to judge and provide interpretations without having its decisions reviewed by the Pope. Later, its interpretive authority relating to Trent was spread among various Congregations (depending on the matter to be interpreted) who continued this work into the 20th century. The Congregation for the Council maintained a general interpretive authority over the decrees relating to the lives of clergy, which is why it was renamed the Congregation for Clergy in 1967.