Catechism Paragraph 2481
Part 3:
LIFE IN CHRIST
Section 2: THE TEN COMMANDMENTS
Chapter 2: YOU SHALL LOVE YOUR NEIGHBOR AS YOURSELF
Article 8: THE EIGHTH COMMANDMENT
Section 2: THE TEN COMMANDMENTS
Chapter 2: YOU SHALL LOVE YOUR NEIGHBOR AS YOURSELF
Article 8: THE EIGHTH COMMANDMENT
Boasting or bragging is an offense against truth. So is irony aimed at disparaging someone by maliciously caricaturing some aspect of his behavior.