The collision between the Milky Way Galaxy and the Andromeda Galaxy.
the grand showdown
Andromeda is a bit bigger than us. So when that happens, Andromeda’s black hole is gonna consume our black hole in a vicious act of galactic canabalism.
Which is an actual term used in astronomy apparently.
“Galactic Cannabalism” sounds like an electro/death metal fusion band.
Galactic cannibalism is one of my favourite astronomical terms, but it doesn’t beat the term used for the stretching out into a long thin tube that occurs when something falls into a black hole (spaghettification) or the term used for a rock thought to be a meteorite but which later turns out to be an ordinary terrestrial rock (meteowrong).