A girl you date that's kept seperate from your regular social circle. A Safeway girl is quiet and low drama. She is a fallback girlfriend for when things don't work out with the hotter girls. Similar to a secret girlfriend but generally less ugly. Usual plain, boring, and safe.
Alt: Safeway girls are good starter girlfriends. See starter girl
I really want to take Karen to Prom but she's going with Ricky so I'll just have to bring my safeway girl.