Sonic's Tails has a pun hidden in his real name

A speed unit disguised as a name

“Miles Prower” is a sound-alike joke: say the first and last names together, and they resemble “miles per hour,” the everyday unit for measuring speed. The pun is tucked into a perfectly plausible name, so it can pass unnoticed when characters call him simply Tails.

Why it fits Tails

The joke belongs in a series built around motion, but it is not just a second label for Sonic’s speed. Tails is a young fox who travels alongside Sonic and can fly by spinning his two tails like a propeller. His name’s wordplay gives him a connection to the franchise’s speed theme while his distinctive way of moving sets him apart.

The pun also depends on hearing the whole name aloud. On the page, “Prower” looks like a surname; spoken after “Miles,” it completes the familiar phrase. That makes the full name a small piece of character-world humor hiding in plain sight.