What does “ship spinning” mean in EVE

Before Captain's Quarters was added, docking at a station gave you a third-person view of your ship in a hangar, with the camera slowly rotating around it. You could also your mouse to spin the camera. Spinning your ship around was one of the most popular in-game activities for many players.

(In all seriousness, you'd probably be doing other things while docked like chatting, placing market orders, or refitting your ship, but it's a funny joke.)

Players did have some legitimate complaints about this feature's removal, however:

[...] As it turns out, [Captain's Quarters] didn‘t allow you to look at the ship from all angles, it requires far more GPU and CPU power than simply rendering a ship and a hangar and, importantly, we didn‘t retain UI functionality such as drag-dropping a ship onto your hangar to activate it or double-clicking on the ship to open its cargo. We know that it‘s annoying as hell logging into a station on a craptop trying to sort out some market orders and feel it slowly roasting your lap while it renders your pencil skirt-wearing Caldari commander lady.