When a man takes his flaccid penis and puts it a gagged earlobe, (male or female) and uses it as a makeshift cock ring. Then, when about to climax, place the tip into the middle of the clavicle. The spunk then drizzles down off the clavicle and on to the chest; leaving the nipples to look like a decoratively painted doorknob.

someone who has a stubby dick

When a girl poops on a man's penis, and leaves it to dry, for a few hours (this is essential!) and then returns to give him a handjob as if she were turning a doorknob. A rusty doorknob.

To pinch a woman's clitoris, pull, and twist, as if it were a doorknob.

The angry doorknob is a sexual move in which the performer of the move finishes fucking their partner, punches them in the face and sits on their face and farts while they are stunned.

The act of inserting a doorknob up a newborn baby’s anal cavity, and painting it brown as it screams in agony.

before you give a guy a blowjob you fill your mouth with champagne and blow it up the guy's asshole. he needs to clench his asshole while you give him a blowjob, then when he cums he shits. the champagne enema makes the feces all hard and sparkly, like a diamond doorknob.