I believe it’s because watching TV dulls your mind. So it turns you into a “boob” (older term to describe someone who isn’t very smart). Tube obviously refers to the vacuum tube inside older televisions that displayed the images. So boob tube is just saying that the TV turns you into a dumb person lol.
I believe it’s because watching TV dulls your mind. So it turns you into a “boob” (older term to describe someone who isn’t very smart). Tube obviously refers to the vacuum tube inside older televisions that displayed the images. So boob tube is just saying that the TV turns you into a dumb person lol.