When you can imagine an individual (usually male) who can pull off red checkered shirts, suspenders and denim jeans, in doing so looking like a chunky SNACK!
A woman shits out a (log) onto the shaft of a man's erect penis. She then proceeds to give the man oral sex. She is eating a log on wood, hence, lumbersnack.
ubersnapper: a self-absorbed, clueless young whippersnapper of a manager, so intent on their own self-promotion that you know, if you work for them, no one else is ever gonna get a leg up.