Defect Triaging is a formal meeting where all the defects of the current Sprint are discussed and triaged i.e. Prioritized based on its severity, frequency, risk, etc.
The defect triage meeting discuss about if defect is valid or user error. If the defect is considered as valid defect then the next question will be is this defect reproducible? If it is inconsistent then that will be assigned for thorough analysis. If bug is reproducible then comes next question is this defect worth of a fix? i.e., how much it impacts the business of the client. If the impact is low then it will be deferred to next releases or bug can be closed. If the impact is high then that will planned for the immediate releases and assigns to the developer to provide fix with defect status as “Assigned”