cognitive orgasm 

An extreme chemical reaction in the brain, resulting from an intellectual discovery or thought, which mimics an orgasim in the body.

*The term distant relative is "Cognitive Disequilibriun" which was founded by development psychologist, Jean Piaget

I just had a cognitive orgasm when I heard that scientists found anti matter utilizing the Hadron Collider

cognitive orgasm by Lenny Klever May 2, 2011