Meaning in this text
The current cosmic age — the shortest and most spiritually difficult of the four yugas. The Bhagavatam describes Kali Yuga as an age of quarrel, hypocrisy, and irreligion, but also uniquely auspicious because devotion (bhakti) is accessible to all regardless of birth or ritual competence.
On this site, Kali Yuga is treated as a reading aid rather than a final doctrinal definition: use it to move from a question about a term into the chapters where the term actually appears.