A somewhat well-known author of surreal horror fiction from Germany, Lennart Poettering is mostly known for writing overly long and confusing works such as Pulsations of Autophilia (a tragedy about a sluggish autistic teenager who is murdered while fucking his uncle's Porsche and comes back as a ghost to seek vengeance) and Systems Down (about a server administrator who finds himself locked in the server room after closing time with a horrible, memory-corrupting abomination).
A person you can go to for just about anything. He will always keep your back clean. All though he will work from the shadows, and no one will be sure where he is. But keep in mind he will be there.
Person 1: yooo did you just see that nigga beat that guy up and take his bitch?
Person 2: yeah bruh dat nigga is definitely a Lennart/lenny
Person 1: let's get the FUCK outta here