What would you call death by magnetar? The magnetic field of a magnetar is so strong that it would stretch people's atoms apart. This, would obviously, result in death. But how spaghettification refers to death by extreme tides, and for the most part, refers to death by black hole, what field-specific term would best refer to death by extreme magnetic fields, eg. from a magnetar?
Nobody has ever needed such a word, and it doesn't exist.
&quot;Spaghetification&quot; is, of course, a joke word, but each time you make a new joke based off an old one, the less funny it becomes.
If you just want a (poor) joke:  Teslascind

In order to capture @pela's ephemeral comment in a more durable post:

Magnetaaarrgh!