If you type “pixilation” into google, it will sometimes automatically change it to “pixelation.” The former is the animation technique of moving human bodies around with a stop motion camera effect. The latter is the what news programs do to cover the naughty bits in a nude photo. Quite a few videos on the internet use the wrong spelling.
I recall a Porky Pig / Daffy Duck cartoon where Porky says to the duck, “Aw, you’re p-p-p-pixilated!”
Here is a fun example from Spike Milligan. Thanks to a tweet from Chris Michael.
Wikipedia has links to quite a few other examples.