He is a sexist 'pig'. = He is a 'male chauvinist pig'. [=he is a man who thinks women are not equal to men]
The train station will be renovated 'when pigs fly'. [=it will never be renovated]
“This time I think he'll ask me to marry him!” “Yeah, and 'pigs might fly'.”
(..) I thought in the application for your loan it said you ran a café for guinea pigs. That's why I thought it was funny. I... never thought guinea pigs needed... It's guinea pig themed. OK. - Yeah. That makes sense. - Yeah. Can I get you a cup of tea? (..)2016 TvShow: Fleabag Title: Episode #1.6 Season: 1 Episode 6