Definitions by Nurse Zoidberg

crackslam 

Using one's buttocks to hang up the phone in the rudest possible manner

"How did you get this number? Hermes, hang up on him in the rudest possible manner!"
"Yes sir!"
*drops pants and picks up the receiver with his butt*
"No! Not the crackslam!"
*SLAM*

crackslam by Nurse Zoidberg July 7, 2008