Knob hung

The female variant of pussy whipped.

Ever since she took up with Tim, she doesnt go out at all. She is so knob hung

Cock Holster

Rough slang for another man's lips - referring to them as accommodating a penis as a holster does a pistol. Thought to have originated in military boot camp.

"Hey - you better snap that cock holster shut before I shut it with my boot!"