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."/