What is Cortex?
1.
The act of drilling a hole into the back of one's skull, and proceeding to repeatedly insert the penis through said hole into the brain cavity, undoubtedly killing the victim.
"Yeah I would smash, but I would rather cortex her, I bet she has nice brain texture."
See
2.
penis<<see also dick
the "fellas" , wang, john, bits and peices, cock, whale bone, double 0 and 7
See