It means thinking they should be together in a relationship (ship comes from the word relationship, I believe). This is a thing that people do a lot in fandoms for fiction stuff. Like shipping two characters together from comics or a TV show or whatever.

[–] roguetrick@lemmy.world 9 points 1 day ago* (last edited 1 day ago) (2 children)

And Lemmy itself does one example of shipping that is iconic:

[–] AwesomeLowlander@sh.itjust.works 9 points 1 day ago

It's not a ship if its real

[–] Kolanaki@pawb.social 7 points 1 day ago* (last edited 1 day ago)

We didn't do that, the writers of Deep Space 9 did. We just like that they did. A lot.