It cost an arm and a leg means that something was VERY expensive.
Piece of cake – very easy to complete
For example: That assignment was a piece of cake!
A term of endearment is a word or phrase used to address and/or describe a person for which the speaker feels love or affection
Common terms of endearment:
- get along/on (with someone)
Meaning: to be amiable with each other
Example: He and I got along well on our first date.
What would you do if your family didn’t get along with your boyfriend or girlfriend?
- fill something in / something out
Meaning: to write information in blanks
Example: Please fill in/out the form with a pen.
fill someone in
Meaning: to update someone with the latest information
Example: Can you fill me in about what we discussed in the meeting?
Craig David can tell you more about this one: http://www.youtube.com/watch?v=dG1F89DetCM