Scroggin Noggin 

To kill something (usually a bird) by grasping it by the head and swinging it in a circular motion.

To finish something off by breaking the neck.

Dave was a bad shot so he had to give a couple birds the scroggin noggin.

Scroggin Noggin by chimchim October 20, 2006

noggin scroggin 

gettin or givin head, oral sex

my old lady was otr so we did the noggin scroggin

noggin scroggin by cheap_trick_rick July 6, 2009