This movie is my Casablanca.
There is a scene where Leatherface thrusts his crotch into the back of a chainsaw while rubbing the blade on a lady's inner leg for nearly three straight minutes. In any other movie, that would be overkill, but I swear to god, it's the most subtle three minutes that this batshit movie has. And it isn't just the men wearing skin masks that are made of other men that get to enjoy all the symbolism. The background characters get in on the action as well, with the most notable of these being the owner of the Cut-Rite Chainsaws store. Dennis Hopper, who does the acting equivalent of an '80s wrestling promo, steps into the store while the owner exasperatingly argues with someone over the phone. It establishes that the owner feels put upon and helpless. He is not a strong or passionate man. Not in this situation, anyway.
But he's about to have the best time of his life.
Hopper buys a huge chainsaw and two smaller backup chainsaws and exits the store, trying out the big one on a log out front. As he swings it down dramatically, the owner watches from the porch, but over the next few seconds, all of the hesitation and anxiety drains from his face. "OH, MY ACHIN' BANANA," he says to himself, which again would seem out of place in a different film but might be only the fourth- or fifth-most obvious erection reference in this one. Something inside of the owner has been awakened. Years of living in a world that doesn't understand him has tamped down his true nature.