>>18164292>>18164349>>18164392>>18164449>>18164509>>18164717>blindly trusting Bulbapedia translationsThe Japanese name is a pun. While "chikaramochi" can mean "muscleman" or "one with power", it also sounds like "chikara mochi", or "power mochi". Mochi is the snack that Japanese moon rabbits make.
Now consider the fact that all Pokemon with the ability are either rabbits, Fairy-types or both.