A person who drives around like a total jackass. Ricer. Slowcar with a loud exhaust. A person who thinks like a ricer and does things to their car that don't make it fast.
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."