It was a reference to the electric start, first introduced in 1965. Prior to that it was the Duo-Glide (suspension at both ends), and before that the Hydra-Glide (hydraulic front forks, hardtail rear suspension).
“Duo-Glide (suspension at both ends), and before that the Hydra-Glide (hydraulic front forks, hardtail rear suspension)”
They need to tag this one the “Coal-Glide”