To have coitus. To have sexual intercourse. The act of inserting your penis into a woman's vagina (assuming she is of legal age and mind-set) and thrusting in and out until orgasm is achieved.
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."