set_random_negative_nickname_effect

set_random_negative_nickname_effect = {
	save_scope_as = nick_recipient
	custom_tooltip = receive_slanderous_nickname_tt
	hidden_effect = {
		random_list = {
			100 = {
				trigger = {
					is_male = yes
					OR = {
						has_trait = stubborn
						has_trait = impatient
						has_trait = ambitious
						has_trait = arrogant
					}
					NOR = {
						prestige_level >= 3
						portrait_shared_clothing_contents_trigger = { # They have a chance to be bald normally; it's not weird or tease-worthy
							CULTURE_SCOPE = culture
							CULTURE_FLAG = african
						}
						is_bald_trigger = yes
						exists = scope:had_nick_the_actually_bald
					}
					any_claim = {
						tier >= tier_kingdom
					}
					highest_held_title_tier < tier_kingdom
				}
				modifier = {
					prestige_level < 2
					factor = 2
				}
				set_nickname_effect = {
					NICKNAME = nick_the_bald_ironic
				}
			}
			10 = {
				trigger = {
					is_male = yes
					age >= 30
					NOR = {
						portrait_shared_clothing_contents_trigger = { # They have a chance to be bald normally; it's not weird or tease-worthy
							CULTURE_SCOPE = culture
							CULTURE_FLAG = african
						}
						is_bald_trigger = yes
						exists = scope:had_nick_the_actually_bald
					}
				}
				modifier = {
					add = scope:nick_recipient.age
				}
				set_nickname_effect = {
					NICKNAME = nick_the_actually_bald
				}
			}
			100 = {
				trigger = {
					NOR = {
						has_trait = crusader_king
						mpo_has_gok_mongol_empire_trigger = yes
					}
					NOT = {
						any_realm_county = {
							culture = scope:nick_recipient.culture
						}
					}
					NOT = {
						primary_title ?= {
							any_past_holder = {
								has_nickname = nick_the_stranger
							}
						}
					}
				}
				modifier = {
					NOT = {
						any_realm_county = {
							culture = {
								cultural_acceptance = { target = scope:nick_recipient.culture value >= 40 }
							}
						}
					}
					factor = 2
				}
				set_nickname_effect = {
					NICKNAME = nick_the_stranger
				}
			}
			100 = {
				trigger = {
					is_playable_character = yes
					NOR = {
						any_sub_realm_county = {
							faith = scope:nick_recipient.faith
						}
						AND = {
							top_liege != this
							faith = liege.faith
						}
						government_has_flag = government_is_theocracy
						government_has_flag = government_is_landless_adventurer
					}
				}
				modifier = {
					has_trait = zealous
					factor = 2
				}
				set_nickname_effect = {
					NICKNAME = nick_the_faith
				}
			}
			100 = {
				trigger = {
					OR = {
						has_trait = deceitful
						has_trait = fickle
						has_trait = ambitious
						has_trait = greedy
						has_trait = eccentric

As written in game/common/scripted_effects/00_nickname_effects.txt.