grime-cock 

A term for describing a lower class, male sexual partner, when considered as a bit of rough for an upper-class sort of bird.

"daddy don't approve so the posh birds love a bit of grime-cock"

grime-cock by Nick Gillam June 1, 2007

Grim cock 

When the dick is absolutely horrible grim

"He had the grim cock"

Grim cock by Corrupt whale November 13, 2017