INTOLERANT
Your character is vehemently prejudiced against a certain race or large social group other than his own. Whether this intolerance springs from simple ignorance or a legitimate grievance is up to you.
[2 Pts.]
Your character’s overt hostility (which goes as far as name-calling, fight-picking, and boorish public behavior, but not as far as malicious mayhem such as arson or murder) will generally be an embarrassment to his friends and allies. It might also get him and the rest of the adventuring party into regular trouble with NPCs (especially innkeepers, criminals, guides, nobles, wizards, etc.) of the appropriate race.
Special: At the DM’s discretion, your character may suffer a -4 circumstance penalty to certain Charisma-based skill checks made against characters of the appropriate race or social group, as well as against other, more enlightened NPCs who find your character’s prejudice contemptible.
Limitation: This flaw may not be taken if the prejudice it grants is commonly held by a large percentage of the campaign world’s population and is generally regarded in a positive fashion. Furthermore, it may not apply to “monstrous” races such as trolls or goblins (if used in the campaign) which are generally assumed to be inimical to the civilizations from which player-characters come.
Remember, this isn’t a flaw unless it’s socially reprehensible.