She has "butterflies in her stomach" really means
She is feeling nervous
She "put her foot in her mouth" really means
She said something inappropriate.
He's "on top of the world" really means
He's very happy.
"Don't let the cat out of the bag" really means
Don't tell the secret or surprise.
His "head is in the clouds" really means
He's daydreaming or not paying attention.
"Don't throw in the towel" really means
Don't give up easily!
I'd like to "sleep on it" really means
I'd like to think about what you said.
"Hold your horses" really means
Be patient. Wait.
She's "pulling my leg" really means
She's teasing me.
You need to "stay on your toes" really means
You need to pay close attention.
"I'm all tied up" really means
I'm very busy!
It's "dirt cheap" really means
It's a bargain. It is inexpensive.
He's "blowing his own horn" really means
He's bragging about himself.
It's "raining cats and dogs" really means
It's raining very hard.
"It goes in one ear and out the other" really means
He doesn't listen to what someone says.
She is "catching some Z's" really means
She's sleeping.
She's "down in the dumps" really means
She's feeling sad.
He's "hitting the books" really means
He's studying very hard.
He's "in hot water" really means
He's in trouble.
I feel like I'm "walking on air" really means
I'm very happy.
He's "nuts about you" really means
He really likes you!
He "bit off more than he can chew" really means
He tried to do more than he could.
He's a "couch potato" really means
He sits on the sofa and watches too much TV.
He "got up on the wrong side of the bed" really means
He's in a bad mood.
"Zip your lip" really means
Don't talk so much.