A complete loser. Usually a tall dark handsome man who is energetic and is ready to fail at anything. In most cases, shluus are attracted to goobs and make a silly, but sexually enticing pair.
Johnny: Bro I was balls deep in Victoria when I suddenly turned into a wet spaghetti noodle! I had to throw my shorts on and run home.
Carlos: HAHAHA YOU WENT OUU SCHLUU! OUUUU SCHLUUU! HAHAHA