McCartney's or Clooney's latest, to tabloids

• Ladies' night attendee
• Sidekick at a chick flick
• Rhyming friend
• Female friend
• Whom a guy might hang with when he's not with the guys
• One joining in on a ladies' night out
• Gayle, to Oprah
• Rhyming buddy
• Certain platonic friend

Wiktionary Word definitions in Wiktionary
n. (context slang English) A female friend or girlfriend.