When you have a bitch sucking your dick partially under water so that you can push her head down when she comes up for air. Then you gerj in her mouth while shes gasping for air.
Also see "Matzelle"
Also see "Bobart"
-"Damn that bitch gave a good gorckle.
-Girl: "I cant breathe"
Guy: "Shut up bitch and finish gorckling me"