Programming code that is written so poorly that it could only have been written by someone after that person drank an entire bottle of vodka. Thought it may run without error, it may be overly inefficient, useless, or a re-implementation of a function that already exists as part of the programming language.
a rich young person who adopts a bohemian lifestyle and lives in a nonaffluent area.
A zhlub is a crude person lacking in social skills along with insensitivity, clumsiness and a lack of manners. Recall Richard M. Zhlub from Gravity's Rainbow