let the cat out of the bag
To disclose a secret; to let a secret be known, often inadvertently.
It was going to be a surprise party until someone let the cat out of the bag.
noun
A soft container made out of cloth, paper, thin plastic, etc. and open at the top, used to hold food, commodities, and other goods.
A container made of leather, plastic, or other material, usually with a handle or handles, in which you carry personal items, or clothes or other things that you need for travelling. Includes shopping bags, schoolbags, suitcases, briefcases
One's preference.
Acid House is not my bag: I prefer the more traditional styles of music.
And from then on, his bag was silence. Silence and killing.
An ugly woman.
The cloth-covered pillow used for first, second, and third base.
The grounder hit the bag and bounced over the fielder’s head.
verb
To put into a bag.
To take with oneself, to assume into one's score
We bagged three deer yesterday.
He was a fine specimen, very large and with a beautiful coat, and I wish I had had the luck to bag him.
To take with oneself, to assume into one's score
the two opposition groups have bagged almost 300 of the 500 seats contested in the election.
To take with oneself, to assume into one's score
"I am sure nobody would mind," said Susan. "It isn't as if we wanted to take them out of the house; we shan't take them even out of the wardrobe." "I never thought of that, Su," said Peter. "Of course, now you put it that way, I see. No one could say you had bagged a coat as long as you leave it in the wardrobe where you found it. And I suppose this whole country is in the wardrobe."
To take with oneself, to assume into one's score
When we hit the club to go and hell-raise / Probably end up baggin' the cocktail waitress