The Ghost and Mrs. Lebec - S8-E23
Continuity mistake: When Carla is talking about seeing Eddie and the restaurant there is someone at the bar who puts their drink down. The shot changes, the drink has disappeared from the bar, and the person puts it down again.
Answer: Rebecca is from Los Angeles originally, and has just spent several days on the U.S. west coast on the private jet of wealthy businessman Robin Colcord, shopping and having a makeover in Beverly Hills. She is implying that Carla is making jokes about her because as an "East Coaster" (Carla is from Rhode Island and lives in Boston), Carla is bitter and jealous over how glamorous "West Coasters" like Rebecca are.
Sierra1 ★