Fixed expressions
Idioms
English fixed expressions — phrases whose meaning isn't obvious from the individual words. Each entry shows the meaning, an example sentence, and its register.
Idioms containing fly, including its inflections. Clear word filter
4 idioms
when pigs fly
CEFR B1Used to say that something will never happen.
Informal
fly off the handle
CEFR B2to lose one's temper suddenly and uncontrollably
Informal
on the fly
CEFR B2while something is happening, without prior preparation
Neutral
fly in the face of
CEFR C1to oppose or be the opposite of what is expected, accepted, or sensible
Formal