NERD SLAP 

WHEN YOU ASK SOMEONE A RANDOM POP CULTURE QUESTION AND THEIR BRAIN GOES BLANK THINKING OF THE ANSWER. WHEN YOU TELL THEM WHAT THE CORRECT ANSWER IS, THEY GET A LOOK ON THEIR FACE AS THOUGH THEY HAD JUST BEEN SLAPPED, THEN GET ANGRY AT THEMSELVES FOR NOT KNOWING THE CORRECT ANSWER.

HEY MAN, WHAT WAS THE NAME OF THE WHITE FURRY DRAGON IN THE NEVER ENDING STORY?

UUMMMM WELL, SHIT, LEMME THINK, FUCK FUCK FUCK FUCK, I KNOW THIS....SHIT, I GIVE UP WHAT IS IT?

ANSWER:FALCOR.

AT THIS POINT THEY LOOK LIKE THEY GOT SMACKED, BECAUSE IT ALL COMES BACK TO THEM IN A HEARTBEAT. THIS IS A NERD SLAP.

NERD SLAP by COLOR BLIND CRIMES June 7, 2009

nerd slapper 

an object which is (usually a ruler) used to slap cankles such as jessica

"man that cankle was asking for a spankering, so i got out my nerd slapper"

nerd slapper by cankleface April 4, 2008

Nerdslap 

When one Nerd intellectually bitch slaps another nerd in an argument. This includes exclusively discussions about Math, Science and Computers.

Yo, Jones et al said you have a tiny data set and your p-value is wack. Man ... you just got nerdslapped.

Nerdslap by Everyotherman April 16, 2010