A musician (most common in guitarists and drummers) who spends more time reading about and buying gear than they actually spend playing music. Gear heads think that by spitting out a flood of brand names and model numbers to their friends that they will sound more intelligent than they actually are. Also, they hope their new equipment will compensate for their lack of practice. Truthfully it shows they spend too much time on the toilet reading "Musicians Friend".
guy: I would let him in this band but gear heads are annoying
A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.