someone good-looking enough for you to be seen out with US, 1992.
2
recreational drugs that are injected into the arm UK, 2002
arm candy
An especially attractive person who acts as a romantic escort or date to social events, but who is not romantically attached to or involved with the person they are accompanying. Did you see the date she had with her at the movie premiere? I doubt they're actually dating, but he was a nice piece of arm candy all the same.