This sounds like some sort of a sexual aid, but no, it's a classic candy. This is another candy I just didn't "get" as a child. Pixy Stix were about as far as I'd delve into the "Swallowing Great Quantities of Acidic Sugar" candy world.
I remember first seeing this candy at a Little League game, where kids in the stands were just slurping it down like old pros. I was both horrified by it and mystified that somehow I had previously missed it at the store. Somehow I could never summon the nerve to buy it as a kid -- seemed too shamefully trashy -- so I bought it as an adult. And then I never ate it.