The Vietnamese word "phe phẩy" describes a gentle, fluttering motion, similar to the way something flaps or moves lightly in the air. It can refer to the action of fanning oneself with a fan or any light, soft movement.
While "phe phẩy" primarily describes a light fluttering motion, it can also be used in a metaphorical sense to describe someone being indecisive or wavering in their choices, although this usage is less common.