| Idiom | Meaning | Example | 
| a paltry sum | 
a small amount of money, chicken feed, peanuts
 | 
What did I pay for this painting? A paltry sum - I bought it at a garage sale.
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| a paper trail | 
a series of memos or letters that record events
 | 
A business merger leaves a long paper trail - many documents.
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| a party to that | 
a person who helps to do something bad
 | 
Jane said she didn't want to be a party to computer theft.
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| a pat answer | 
a planned or memorized answer, a canned answer
 | 
You won't get the job if you give a pat answer to every question.
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| a penny for your thoughts | 
tell me what you are thinking about
 | 
When I'm quiet, she will say, "A penny for your thoughts."
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| a perfect stranger | 
a person you have never seen, a total stranger
 | 
In New York, a perfect stranger asked her to sleep with him.
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| a pick-me-up | 
something that gives me energy or new life
 | 
On a hot afternoon, a glass of  iced tea is a great pick-me-up.
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| a picture is worth a thousand words | 
a picture is easier to understand than a report or essay
 | 
Instead of more talk, I'll draw thousand words a diagram. A picture is worth a thousand words.
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| a piece of ass [B] | 
sex, intercourse, nookie
 | 
If it's just a piece of ass you want, why don't you find a prostitute?
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| a piece of cake | 
easy to do, it's a snap, no problem
 | 
Solving the puzzle was easy. It was a piece o' cake.
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