to stress and distract; usually used in passive voice: to be frazzled = to be
distracted and stressed; usually to the point of annoyance, anger,
depression; opposite of focused, serene, and productive.
The shortened form, fraz, is a silicon age shortening meaning bombarded with email, instant messages, cell phone calls, etc. to the point of distration.
Thought to be an amalgam of
frustrated, fried, and hassled.