When someone is sleeping and they have a dream or thought of themselves getting hurt or falling, and their body physically reacts, and causes them to jerk or flinch rather spasmodically.
Guy: What the fuck tracy, you kicked me in the balls last night in bed???
Tracy: sorry, i had a bad dream and probably got a nocturnal flinching.
Guy: go fuck yourself, we're done.
Tracy: sorry, i had a bad dream and probably got a nocturnal flinching.
Guy: go fuck yourself, we're done.
by yuriogy1 December 5, 2009