Let (someone) In On (something) Idiom American Expressions and American Idioms - What does Let (someone) In On (something) Idiom mean?

This database is a comprehensive collection of all the American idioms and slang available. American Idioms are many and varied. We hope you enjoy our collection. We are adding more all the time. .

let (someone) in on (something) What does let (someone) in on (something) mean?	tell someone a secret	We let our friend in on our secret plan to sell our apartment and buy a house.
	Some Random Idioms
forty winks What does "forty winks" mean?	a short sleep during the day	When I arrived home I lay down and had forty winks.

had best (do something) What does "had best (do something)" mean?	should do something, ought to do something	I had best go home soon as I want to get up early tomorrow morning.
sign up for (something) What does "sign up for (something)" mean?	to promise to do something by signing one`s name, to join something	My friend signs up for tennis lessons every summer but he never improves.
not buy (something) What does "not buy (something)" mean?	to not accept something to be true	I do not buy the excuse that the man does not have enough money to pay for his dinner.
give (someone) the benefit of the doubt What does "give (someone) the benefit of the doubt" mean?	make a judgement in someone's favor when the evidence is neither for nor against the person	The police gave the man the benefit of the doubt and did not arrest him as a suspect for the crime.
all day long What does "all day long" mean?	the whole day	She has been sitting and waiting for the mail to arrive all day long.
put one's cards on the table What does "put one's cards on the table" mean?	to be open and honest about one's intentions	We put our cards on the table and tried to solve the problem.
pay up What does "pay up" mean?	to pay now	I had to pay up my parking tickets or I would lose my driving license.
express (one's) anger What does "express (one's) anger" mean?	to release one's anger	The man often loses his temper which is not a good way to express his anger.

American Idioms and Expressions

Let (someone) In On (something) Idiom