in which the assailant
breathes out, and exhales
some form of assault. Like serious halitosis
In many RPGs, a breath weapon is a cone or lineof a toxic element - either fire, cold, electricity, or acid. In Dungeons and Dragons Third Edition, a character will use their Reflex saving throw to attempt to take half damage from the attack (unless they have the Evasion class feature).
Dragons and elementals usually have breath weapons.