This document discusses various common idioms in English:
- "A piece of cake" means something is very easy to do
- "As easy as ABC" and "as easy as pie" both describe tasks that are very simple
- A "hard/tough nut to crack" refers to a difficult problem or person
- A "ball of fire" is a person with great energy
- "As busy as a bee" means to be very busy or active
- "Have butterflies in your stomach" feels very nervous
- "Raining cats and dogs" describes heavy rain
- "Cost an arm and a leg" means something is very expensive
- "Over the moon" means