What SNL/Mad TV sketch is this?

In a comedy sketch show there was a woman whose friends thought she was hilarious. They were always cracking up at what she said and urged her to go become a professional comedian or go to Hollywood or something. Anyway it was funny because she would just say popular catch phrases like "You are the weakest link. Goodbye!" And her friends would lose it. So she was funny for just spitting out random catch phrases. I thought it was Rachel Dratch from SNL but I'm probably wrong as I can't find it anywhere. A name or video link would be amazingly helpful.