What happened with my spigot and how to fix it?
From this image:

...it looks like maybe the Bibb washer has come off the end.  Is there a  threaded hole on the shaft?   Or is the end broken?  In which case you'll probably be replacing the whole thing.
Edit:  Image source: https://www.doityourself.com/forum/attachments/plumbing-piping/1386d1340667135-freeze-proof-spigot-soldered-threaded-connection-36947d1312808313-help-stopping-hydrant-squirting-water-out-top-2005-9-12_frost_proof_sillcock_w5.jpg