charge up

charge up  {v. phr.}
1. To submit to a flow of electricity in order to make functional.
I mustn't forget to charge up my razor before we go on our trip.
2. To use up all the available credit one has on one's credit card(s).
"Let's charge dinner on the Master Card," Jane said. "Unfortunately I can't," Jim replied. "All of my credit cards are completely charged up."
Categories: verb