The dirty Kain is when you stick your dick in the girl vagina and secure yourself. Next you slap her ass and she tries to buck you off is you can last for 15 seconds you are allowed to finish.
Damn last nightmy man did the dirty Kain on me and stayed on with ease!
A small piece of information. Derived from the word ken, used often in the scottish language and is synonymous with knowledge.
Person 1: "Hey I don't get this shit. How do you solve this problem?"
Person 2: "I got that one. Give me some kenlets on this assignment and I'll help you w/ that one."