When people (usually Coloradoans or New Mexicans) insist or demand that another person be in one or more places simultaneously.
They seriously believe that people from other locations have this gift as they do, and will have a meltdown if you don't comply with this common demand (in their states.)
Not to be confused with multi tasking.
Multi-place means to have yourself in multiple places at once.
Your friend from New Mexico:
"Hey! Come over and have dinner with me."
You: "Sorry. I can't. I'm pulling a 14 hour workday with no breaks."
Your NM friend: "That's ok. Multi-place Come over right now and eat with me or I'm finished associating with you deadbeat from Iowa!"
You: " Please show me how to multi-place".
Or:
Boss one in Denver: "You're working 9-8 next Wednesday at my store, or you're fired!"
You: "I can't. I work 9-8 in Englewood next Wednesday at the other ____ store".
Boss one: "You'd better be at my store or else!"
Boss two: "You'll be working at my store that day and time, or else, New Yorker! Multi-place yourself like everyone else!"
You : (addressing both bosses from same company) "How can I be at your store while I'm at his store? How do I multi-place ? I don't know how to multi-place."
Both bosses : "Hahahaha that's for you to figure out, outsider! Hahahaha!"