Drunk: 1920s Jazz-era usage. See also: hammered, sloshed, shit-faced, tanked, blitzed, bombed, wrecked, three sheets to the wind, loose, tipsy, trashed, smashed, etc.
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."