The expression when pigs fly is used when people talk about something they would never do, or some event that would never happen. It is a very old expression, and no one knows why we talk about pigs! We can also use the similar expression, when hell freezes over. Check out the examples in this episode.
Expressions included in the learning materials
- When pigs fly
- Bungee jumping
- With caution
- When hell freezes over…
- Afraid of heights
Jessie: I would never shave my head.
Harp: Or you could say I would shave my head when pigs fly.
Jessie: Oh I see. So pigs could never fly and I would never shave my head, so I could say, I will shave my head when pigs fly.
Jessie: So that means “never”.
Harp: Exactly. So should we give some more examples? My boyfriend is very adventurous and…