Abbreviation for don't stick your dick in my back. Doing something unsolicited and extremely unwelcome to another.
Example:
Guy 1: Yo!! I added you to my mafia in Mafia Wars!!1 Now you'll get notified every time I need help in Las Vegas, Italy, Moscow, etc...!!!!
Guy 2: dsydimb dood
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."