English Idioms About “Money”
Idiom: Licence to print money
Meaning: If a company or activity is a licence to print money, it generates a lot of money without much effort.
Example: Advertizing companies are just a licence to print money.

English Idioms About “War”
Idiom: Meet your Waterloo
Meaning: If someone meets their Waterloo they are defeated by someone who is stronger or by a problem that is very difficult to surmount. The phrase to meet one’s Waterloo refers to the Battle of Waterloo near Belgium in 1815 where the French army under the command of Napoleon was defeated. The phrase entered the English language as a phrase signifying a great test with a final and decisive outcome – generally one resulting in failure and proving vincibility for something or someone who had seemed unbeatable.
Example: He met his Waterloo when he was challenged by the young contestant.

English Idioms About “Money”
Idiom: Strapped for cash
Meaning: The idiom strapped for cash to be short of money.
Example: I’m strapped for cash, can you lend me ten dollars?