The pillow that's been pulled out from under a woman's buttocks, used during sex to lift her hips and bum up slightly for better penetration and stimulation. It can then be used to lie one's head on, giving immediate warmth for the face and as an added bonus, additional scent.
After a great session, Milo was exhausted, so he pulled out the hot pillow from under Sharon's ass and lay his tired head down to rest. He was asleep in seconds, having been totally overcome by her transferred warmth and overpowering scent.
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."