1. Idioms:
• pull one's leg:
  to joke about something or exaggerate
  "Don't pull my leg, tell me the truth!"
  
• leg to stand on:
  proof or support for an idea or decision
  "Without a witness, you don't have a leg to stand on."
  
• put one's foot down:
  to take a firm stand, to enforce a command
  "My father put his foot down and won't let me use the car."
  
• make one's mouth water:
  to make hungry or stimulate the appetite
  "The smell of mom's cooking makes my mouth water."
  
• melts in your mouth:
  tasts very good, delicious
  "Grandmother's apple pie melts in your mouth."
  
• see eye to eye:
  to agree completely
  "We get along well because we usually see eye to eye."
  
• butterflies in one's stomach:
  to be very nervous
  "When I made the presentation in front of the whole school body, I got butterflies in my stomack."
  
• cream of the crop:
  the best there is
  "This perfect diamond is really the cream of the crop."
  
• it's lemon:
  a product with many defects
  "This new car is a lemon; nothing works right."
  
• fishy:
  when something seems to be wrong; probably not the truth
  "There is something fishy about this story; I don't believe it."
  
• in the pink:
  to be in good health
  "I exercise a lot, so I am in the pink."
  
• white lie:
  a lie which is unimportant; small fib
  "The woman told a white lie. She said her hair was naturally blonde."
  
• under the wether:
  not feeling well, probably getting a cold
  "Randy won't go to the party, he's a bit under the weather."
  
• put two and two together:
  to reach a conclusion; figure things out
  "We put two and two together and realized why mother was angry."
  pull some strings:
  to use influence; to manipulate
  "You're the boss's son, please pull some strings and get me a job."
  
• face the music:
  accept the consequences; take the punishment
  "The criminal had to face the music in the courtroom."

2.Agreement: Expressions used by the second speakers who are in agreement with the first speakers:
• You can say that again!
• And how?
• You bet.
• You said it!
• You are telling me!
• You can say that again!
• Likely say.
• Sure thing.
• By all means.
• I'll say.
• Go ahead.

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