“Give it another swipe?”
A customer at the store you work at is paying with a credit card. The credit card doesn't work the first time she tries it, so you ask her to try again.
Give it another swipe?
To "swipe" means to make a sliding motion. When you "swipe" a credit card, debit card, or some other kind of card, you slide the card through a machine that reads the information on it.
There are also other machines that you "dip" a card into. This is the type that you put your card into and then pull it back out.
You can take a verb like one of these:
- call (someone)
- push (something)
- try (something)
...and make it into an expression with "give ___ a ___":
Give me a call when you get in.
Give it a push.
Go ahead and give it a try.
This means to try to do something. It sounds friendly and casual.
You can't do this with verbs that don't have objects, though, like these: