Top Definition
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.
by sare1258 April 20, 2010

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