When a driver involuntarily moves their arm in front of the passenger when slamming on the breaks. Occasionally faked by men to feel a woman's chest.
by KJR August 16, 2005
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
the sudden, inexplicable urge to turn every sentence that ever comes out of anyone's mouth into a 'your mom' joke.
president obama: america needs change!
person afflicted with the 'your mom' reflex: your mom needs change.
person in restaurant: i really like this soup! it has really good chicken in it.
person afflicted with the 'your mom' reflex: your mom has really good chicken in it.
person in car number 1: man that person ahead of us is driving badly.
person in car number 2: who's driving that car anyway??
person in car number 3, who is afflicted with the 'your mom' reflex: your mom's driving that car.
person afflicted with the 'your mom' reflex: your mom needs change.
person in restaurant: i really like this soup! it has really good chicken in it.
person afflicted with the 'your mom' reflex: your mom has really good chicken in it.
person in car number 1: man that person ahead of us is driving badly.
person in car number 2: who's driving that car anyway??
person in car number 3, who is afflicted with the 'your mom' reflex: your mom's driving that car.
by sare1258 April 20, 2010