| Idiom | Meaning | Example | 
| collecting dust | 
not used for a long time, idle, gathering dust
 | 
"Where's the silver tray?"   "On the shelf, collecting dust."
 | 
| come [B] | 
have an orgasm, ejaculate
 | 
Some women fake an orgasm - they pretend to come, eh.
 | 
| come across | 
seem to be, appear to be
 | 
You came across as being angry, not just disappointed.
 | 
| come across | 
discover, find
 | 
I came across an antique basin in the attic. It was in a box.
 | 
| come across | 
give, pay, pay up
 | 
They came across with $250 - half the money they owe us.
 | 
| come across [B] | 
consent to have sex, get laid, go all the way
 | 
You kiss me as though you're going to come across, but then you say no.
 | 
| come again | 
what did you say? beg your pardon?
 | 
When I asked Grandpa if he liked   the soup, he said, "Come again?"
 | 
| come alive | 
become lively, cheer, applaud
 | 
As the players skated onto the ice, the crowd came alive.
 | 
| come around | 
begin to co-operate, believe, come onside
 | 
When he reads the report, he'll come around. He'll believe us.
 | 
| come back to haunt you | 
cause you to feel guilty or ashamed
 | 
Lies will come back to haunt you, remind you of the past.
 |