A reflex that occurs when an otherwise well-mannered mother perceives her child has been threatened, slighted or other-wised maligned causing an uncontrolled outburst.
I could feel my soccer mom reflex go into action when I heard another kid's mom getting on to my son. I snapped and said, "Oh, no, you didn't just point your finger at MY son!"
by Lil Momacita January 1, 2014