| Idiom | Meaning | Example | 
| square up | 
pay a debt, pay your share
 | 
Cal told me you owe him $50. He's wants you to square up.
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| square up | 
leave prostitution or life on the street
 | 
I've heard there's a group that helps prostitutes square up.
 | 
| squat | 
a place to stay, a shelter for street people, a shack
 | 
"Where's your squat?" "Across the tracks in a deserted service station."
 | 
| squeaky clean | 
very clean, innocent
 | 
I've checked Todd's record. He's clean - squeaky clean.
 | 
| squeal | 
tell the police, rat on
 | 
Robbie won't squeal on us. He'll never tell what we did.
 | 
| squealer | 
one who tells the police or authorities, canary
 | 
Jason, you squealer! You told the teacher I copied your work.
 | 
| squirrel away | 
save, hide, put in a safe place, salt away
 | 
You can have your own pension if you squirrel away a few dollars each month.
 | 
| stack up | 
compare with, pale by comparison
 | 
The Lincoln is a nice car, but how does it stack up against the Lexus?
 | 
| stacked | 
having large breasts, having big boobs, sweater girl
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"Please describe the woman." "She was tall, blond and, well, you might say she was stacked."
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| stag | 
party for a man who will soon be married
 | 
Let's have a stag for Greg. It's his last party as a single man.
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