Taunting someone with a derogatory nickname they dislike, as Al-Saadi explains in his commentary on Al-Hujurat. Its context is religious and ethical; habitual use or calling it a joke does not remove the question of contempt.
Does “I Was Joking” Absolve Us of Responsibility?Source cited by the articleWords that help us understand
All conceptsDerogatory name-calling
Meanings in context, with links to the articles and sources in which they appear.