look up any word, like cunt:
 
1.
The act of making an incorrect assumption, occurring before the person speaking has even made the point.

Can also be applied to answering a question that wasn't completely understood.
George had a severe premisconception about Jills request for time apart and started talking about another vacation.

Edgar had several narcissistic personality traits, including a tendency to premisconceive what anyone would say, making large leaps back to his own concerns and complaints.
by lightinmyeyes December 07, 2011