"Two peas in a pod" really means...
Two people or two things are very similar or very alike
"Stay on your toes" really means....
You need to pay close attention
"Blowing your own horn" really means....
Someone is bragging about themselves
A "couch potato" really means...
Someone is lazy; they watch too much TV
"Butterflies in your stomach" really means...
You feel very nervous
"It goes in one ear and out the other" really means...
Someone is not listening
"Throw in the towel" really means....
To give up easily!
"Head in the clouds" really means...
Daydreaming or not paying attention
"Giving the cold shoulder" really means....
Ignoring someone
"Bite off more than you can chew" really means...
Doing more than you can; taking on too much
"Piece of cake" really means...
It is easy or simple
"Barking up the wrong tree" really means...
You are looking in the wrong place; asking the wrong person
"Heart of gold" really means...
A kind and caring person
"In hot water" really means
You are in trouble
"Let the cat out of the bag" really means...
Telling/revealing the secret or surprise
"Pulling my leg" really means...
To trick or tease someone; joking with someone by telling them something false
"Under the weather" really means...
Not feeling well; feeling sick
"Slipped my mind" really means...
You forgot
"Cost an arm and a leg" really means.....
Something was very expensive