1. To install wires inside of something or some place in order to provide power, Internet access, or a direct line of communication. We're just waiting for the electrician to wire up the house before we start putting in the drywall. Now that the spare room is wired up, I'll be able to use it as a home office.
2. To attach or connect something to or with wires in order to provide power, Internet access, or a direct line of communication. With the Wi-Fi down, we had to wire up all our computers directly in order to share our documents and project information. Let me just wire up these speakers so we can hear the music.
3. To fasten, secure, or affix something with wires. They might have to wire up his jaw if the break is too severe. Make sure you wire up those bales of hay before you finish for the day.