They threw the bride a 'bachelorette party'. [=a party for a woman who is about to be married that is usually attended by women only]
(..) I said it was gonna be small. Small! Yup, that's exactly what it was. I was thinking I could help you guys out by throwing you a bachelorette party! Brad, you can totally come since you guys decided to do that nontraditional mumbo jumbo. I think we're good. You know what, though. (..)2009 TvShow: It's Always Sunny in Philadelphia Title: The Waitress Is Getting Married Season: 5 Episode 5