rocket science
Meaning: something very difficult to understand
Example: I've no idea why Kelly can't make a spreadsheet, and it's not exactly rocket science is it? Read on
hit the books
Meaning: to study very hard
Example: I have an exam tomorrow, I need to hit the books tonight. Read on
as mad as a hatter
Meaning: it refers to someone being completely crazy
Example: The way he dressed for the event, he must be as mad as a hatter. Read on
Subscribe to our new updates in your email.
