) Chew the Fat
-Tim came round my house last night and we chewed the fat for hours.
-Why don't you come over on Sunday morning and I'll make some breakfast and we can chew the fat for a couple of hours.
-I sometimes call Wendy late at night and we chew the fat for an hour or so before going to sleep.
Meaning:
If you chew the fat, or chew the rag, you have a long, friendly chat with someone.
Etymology:
Chewing fatty meat can take a long time and your mouth is constantly moving, like a long conversation.
2) All at Sea
-That finance lecture left me all at sea.
-I'm all at sea with our new spreadsheet software. I just can't understand it.
-For the first few days in her new job, Gail felt totally at sea. She didn't know what to do or who to ask for help.
Meaning:
If you're at sea, or all at sea, you're confused about something and not sure what to do.
Etymology:
Derived from the idea of a boat lost at sea.
3) Beat the Rap
-James beat the rap when he robbed the licker store due to lack of evidence.
-Everyone knows that Jimmy the Snitch did the robbery in Green St., but he beat the rap because he's in with the cops.
-Henry was charged with drunk driving, but his lawyer helped him beat the rap on some technical detail.
Meaning:
If someone beats the rap, they avoid being found guilty of a crime.
Etymology:
The rap refers to the rap sheet, which is a criminal record. So you are avoiding getting a criminal record.